A bicycle with a gasoline engine (from a lawn mower). A bicycle with a motor from a trimmer - manufacturing elements and self-assembling a moped How to make a moped from a trimmer

A person always tries to make his life easier and construct something new from available materials. Something that will help him spend less effort and energy on daily tasks. Such inventions can easily include a homemade motor bike and a motor scooter. If you have a motor from a lawn mower and spare parts (or a whole) bicycle/scooter on hand, why not give them a new life? We will tell you how to assemble a scooter and a bicycle with a trimmer motor in this article.

How to make a motorbike from a trimmer with your own hands?

Making a motorbike with your own hands from a lawn mower is not as difficult as it might seem at first glance. First, determine what power the engine on the trimmer is. It must be at least 2 horsepower. Otherwise, the future unit will not be able to travel a long distance, or even not move at all.

The next stage is the design of the drive. To do this, you will need to make a drive pulley (attached to the motor), a driven pulley and a special frame for the motor. It is recommended to select a belt that transmits torque at the end of the assembly, based on the dimensions of the entire structure.

You can install the engine from a trimmer on a bicycle by making a special small frame from scrap metal scraps. The second point is attaching this structure to the bicycle. It must be reliable and at the same time easy to maintain. This suspension must be securely attached, resistant to vibration and, preferably, quickly and easily detached.

There are two mounting options:

• bolting;
• fastening by welding.

Each method has its pros and cons. Take into account all the features of your equipment and its operating conditions, and build on these data when choosing a mounting option.

Additionally, do not forget to attach parts such as a small fuel tank, exhaust pipe. It would also be a good idea to install an additional brake, since a bike with a trimmer engine will be much faster and more powerful than a regular one.

We also invite you to watch the video, which shows the process of constructing a motorbike from a trimmer:

Do-it-yourself scooter with a motor from a trimmer?

A homemade motor scooter with an engine from a trimmer is an excellent home transport for entertainment, traveling short distances outside the roadway (on sidewalks and park paths, for example).

Based on the characteristics of this type of transport, it will have the following technical characteristics:

• will be able to develop low speed (no more than 40 km/h);
• the small diameter of the wheels will cause little stability, which can lead to the scooter skidding;
• such equipment is not intended for heavy loads and transportation of heavy loads;
• Children should not be trusted with such a “toy” without adult supervision.

The assembly process itself is relatively simple. First, find an old scooter (if you don’t have one, you can weld a similar frame yourself). If you take an already assembled unnecessary scooter, it is appropriate to strengthen its frame with a 15 mm square metal profile.

A chain drive will transmit power from the engine to the rear wheel. To do this, you need to make a gearbox. This is the most difficult stage of design. The bicycle gear must be secured to the coupling of the lawn mower motor. First, the dimensions of the coupling should be adjusted to the gear (cut off the teeth from it, make it thinner by turning it on a lathe). The best way to fasten the coupling and sprocket is by shrink fit or welding. Next, you need to connect the second bicycle sprocket with the adapter hub, which in turn must be seated on the shaft, and the shaft on bearings.

The second sprocket and brake pad are secured using another hub on a fixed shaft. Brake and gas levers and cables can be reinstalled from a moped or purchased at a car store.

sadovij-instrument.ru

Like many, I started my journey with the legendary “deshnik”, which I put on a teenage bike “Tisa”. The device turned out to be funny, but it came with a petrol stench in the apartment, dirty hands and a shaman's tambourine for driving out evil spirits from the carburetor and ignition. The device did not perform any utilitarian functions.

But one day I was lucky enough to ride a mountain bike with a motor from a trimmer (gasoline mower) and a belt drive. Even though it was winter and I didn’t ride for long, I experienced a culture shock! In cold weather, the engine started perfectly, both cold and warm, pulled great, was perfectly clean and did not stink at all. And the “maximum speed” of 55 km/h with such traction was never even dreamed of by the “dealer”!

In general, a belt kit with a two-stroke motor from a trimmer with a power of 1.5 hp was soon purchased. plus a stronger mountain bike. There was no limit to happiness, but only until the first rain... It turned out that the drive belt loses strength when wet and breaks, changing it on the road is not very convenient, and besides, the cost of a new one is high. And rain in Moscow is not a rare phenomenon. But I was already used to riding such a comfortable motorbike and didn’t want to give up the idea, I decided - a chain and only a chain will save the “father of Russian democracy”!

The required gear ratio forced the use of a driven sprocket almost the size of a bicycle wheel, but fortunately, a gearbox from a Chinese minibike was found that fit perfectly onto the trimmer motor and allowed the use of sprockets of the usual sizes. The drive components are generally available bicycle ones: a single-speed wide chain, a 51-tooth sprocket from an HVZ bicycle and a “freewheel” (overrunning clutch with a sprocket) from a BMX, as well as a bicycle brake handle as a throttle trigger.

In addition to purchased parts, the design also contains many original components. These are steel racks that are attached to the bicycle frame, a motor mount (holds the gearbox with a motor), a chain tensioner with caprolon rollers, fastening the driven star to the wheel, an adapter from the gearbox shaft to the freewheel. He designed the parts himself and manufactured them at a nearby defense plant.

Of course, it was not possible to assemble the ideal structure the first time; I treated childhood illnesses for another year. I selected the optimal materials and design solutions, tried different layouts, and rode, rode, rode...

What happened in the end? Ultra-light (curb weight - 25 kg) motorized vehicle with a maximum speed of 55 km/h, dynamics at the level of simple Chinese scooters, fuel consumption of 2 liters per 100 km (power reserve on one tank 50 km), which does not stain with oil at all and does not smell of gasoline . The absence of smell and dirt helps me save on a garage or parking lot; the motorbike is in the apartment and does not bring any discomfort to the family. What’s especially pleasing is that all the “pedal” functions have been fully preserved. All that remains is gear shifting and easy pedaling (thanks to the “freewheel”); if there is a lack of traction, the engine can always be helped by the pedals and go up any hill. The chassis of a modern mountain bike is very durable and reliable, disc brakes provide very confident braking, and large wheels help to overcome our “directions” more easily.

After completing modifications to the design, I have already driven more than 4,000 km and during this time I only changed the drive chain once, twice the spark plug, and once cleaned the fuel system - a good indicator of reliability and unpretentiousness.

For its lightness and daring agility, I called my motorbike “Hare”. Now I drive the “Hare” every day to work, and in traffic jams it has no equal. It's so narrow and maneuverable that during rush hour I get home faster than I used to on a motorcycle, and the travel costs are ridiculous. There were also small trips, trips outside the city, even from Moscow to Yaroslavl. But a motorbike, of course, is not for the highway - it’s not comfortable to “beat” on it, but in the city and country trips I can’t imagine a better transport for myself!

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Cultivator assembly

If you have a summer house or just a plot of land, then a cultivator will help facilitate soil cultivation. Traditionally, a hoe is used for these purposes, but working with it takes a lot of time and effort. Using a cultivator will reduce labor costs, and the entire process will take a shorter period of time. Factory-produced equipment is expensive, so if funds are limited, the question arises of assembling a cultivator yourself. Both gasoline trimmers and electric scythes are suitable for this.

To create a simple example of technology, you should stock up on the following tools and materials:

• a grinder with a set of discs (suitable diameter - 125 mm) for metal;
• drill with drills of various diameters;
• welding machine;
• electrodes;
• jigsaw or hacksaw for metal;
• an emery machine with two abrasive wheels of different grain sizes;
• a functioning petrol trimmer;
• with a pitchfork;
• a steel tube suitable in diameter for the brush cutter shaft;
• hand tools: keys, hammer, pliers, core, tape measure and marker;
• a sheet of metal with a thickness of 3 to 5 mm and dimensions of at least 10*10 cm.

The manufacturing process begins from the working part. Curved rods of garden forks will serve for this purpose. Their recommended length is from 10 to 15 cm - this is enough to loosen the soil.

The working nozzle is manufactured in the following sequence:

• the fork teeth are flattened to a width of 1 cm;
• on emery, using a circle with fine abrasive, sharpen the cutters;
• using a jigsaw, cut a circle with a diameter of 10 cm from the metal;
• process it on an emery machine until an almost ideal shape is achieved;
• Prepared cutters are welded to the metal circle at regular intervals (recommended quantity - 3).

With more than 3 pieces, the load on the equipment increases greatly.

The next step is to attach a weeding cutter to the trimmer. The process is greatly simplified if you have reverse thread, located at the end of the brushcutter shaft, onto which the manufactured working part is simply screwed. To do this, a tube with a nut is first welded to the cutter.

If you have plumbing experience and welding skills, converting a trimmer into a cultivator is quite simple. The financial costs are insignificant. If you use an electric scythe for your work, you will need to think about an extension cord so that it reaches over the entire area being processed.

DIY lawn mower

The lawn mower facilitates the process of caring for decorative herbaceous plantings, and also speeds up work when there are large areas that need to be processed. There are many ready-made, easy-to-use models on the market for such equipment, but they are expensive and therefore not available to everyone. They also quickly fail if there are large weeds and stones on the site. Homemade products are much cheaper than factory-made analogues, and they are also more practical to use.

The components of the lawn mower design are:

• engine (gasoline or electric), which is the basis of the created mechanism;
• a frame designed to attach all parts of the device to it;
• casing for protection;
• knives;
• handles and wheels;
• control system block for the unit being created.

Craftsmen have invented many different ways to convert a trimmer into a lawn mower. The simplest option is shown in the video:

Very common in practice frame option homemade device. The tools and materials for independent implementation of the project will be the same as in the previous case. Plus you will also need:

• sheet of plywood (or metal 3-4 mm thick);
• metal corner 25x25 mm;
• 2 m of pipes of different diameters.

The manufacturing process is as follows:

• a rectangular frame 50x60 cm is welded from the corner;
• wheels of the required size are installed in the corners, which can even be taken from old toys;
• plywood cut to size is fixed on top of the frame or metal is welded;

• a hole is made in the center of the cart for the trimmer rod and fastenings for it;
• make a knife or choose a suitable ready-made option;
• then attach the brush cutter to the trolley;
• install the knife;
• install a casing on the back of the cart to protect against cut grass flying in different directions;
• start testing the device.

Important! The diameter of the wheels is selected so that the knives do not reach 5 centimeters to the soil.

There are many ways to make knives, and their shape (design) also varies radically. In this case, various materials and old tools are used (for example, an old wood saw). The main principle is that the knives are well sharpened and balanced - this is necessary to prevent vibration of the equipment during operation.

It is often found that they do not use an old brush cutter, but only the engine from the trimmer and its control unit. In this case, you will need to make handles for the trolley and secure all the structural parts to the frame.

When assembling the lawn mower and while working with it, be sure to adhere to safety precautions to avoid injury. You can also attach a bag to the unit to collect the mowed grass.

We make a motorbike

Home craftsmen managed to make a more practical vehicle out of an ordinary bicycle - they replaced it with an engine from a lawn mower. At the same time, options with both a gasoline engine and an electric motor are practically implemented.

Required tools, materials and parts

Electrical engine The bike is powered by a battery, which, depending on the power of the unit (it is taken 0.35-1.2 kW), lasts from 30 minutes to 2 hours.

Used to modify a bicycle two- or four-stroke gasoline engines. The latter option consumes less fuel and is less noisy during operation. The recommended power is from 1.5 hp, and the optimal option is 2 hp. When using a motor with a lower parameter, the motorbike will barely move or will not be able to move at all.

The rotational movement from a gasoline engine to a bicycle wheel occurs through the use of belt or chain drive. Because of this, you will additionally need to make the following details:

• a metal suspension in the form of a frame with sides to secure the motor to the bicycle frame;
• driven and driven pulleys or sprockets for attachment to the engine and wheel, respectively.

From a practical point of view, using a chain drive is preferable to a belt drive because the belt wears out faster, especially if it gets wet regularly.

To implement the project you will need to choose suitable gearbox. After installing the pulleys, select the belt of the desired size.

The dimensions of the frame for the engine depend on its dimensions. The suspension itself is secured to the frame of the motorbike:

• bolted connection;
• using welding.

The last option is the best in terms of strength if the welder is good. If the design of the bicycle frame allows, then the suspension is replaced with a clamp, which secures the engine. This mounting option is more practical. The method of fixing the motor should be convenient, reliable and allow it to be quickly removed if necessary.

Doing all the work yourself with an old, functioning trimmer, a bicycle and a small set of tools will require time and patience from the performer.

Sequence of assembly of the structure

To independently assemble a bicycle with a gasoline engine, you will also need, in addition to the materials and parts considered, the following:

• controller;
• cable for adjusting motor operation;
• fuse;
• welded exhaust pipe;
• sleeve;
• washers;
• bolts;
• chain tensioner.

The motorbike is assembled according to the following algorithm:

• put a sprocket on the rear bicycle wheel;
• use a clamp to fix the engine (with a sprocket on the shaft) on the frame behind the seat or on the trunk, if the design features of the bicycle allow, otherwise you will need to choose another convenient place for this purpose;
• put the chain on the sprockets of the wheel and motor;
• attach the tensioner;
• adjust chain tension;
• fix the throttle;
• stretch a cable from it to the engine;
• secure the fuel tank;
• install the carburetor.

For personal safety When operating a motorbike, they upgrade the braking system, change the wheel tires to non-slip products, and check the integrity and stability in motion of the created structure. After the entire structure is assembled, it is tested, having previously been inspected for defects.

Homemade snow blower

There are many options for creating snow removal equipment based on a trimmer. The simplest method of modernization is to replace the knife with a rotor. This snow blower works like a shovel, but it is simply moved through the snow: the device scoops it up and moves it to the side.

To carry out the planned alteration, you will need the following materials and tools:

• a brush cutter with a straight rod, at the end of which a gearbox is installed;
• a metal keg, even a beer keg will do, for example, for the Baltika drink;
• a trimmer cutter with many teeth (used for mowing dense thickets of grass);
• drill with drills;
• grinder and welding machine.

Instead of a barrel, you can use a thin sheet of metal (tin) 1.5 mm thick.

The snow blower assembly process is performed in the following sequence:

• cut the barrel in a circle, 15 cm from the bottom;
• make a hole in the bottom for the brush cutter gearbox and drill 3 more small holes to secure its shield;
• a square of 10 by 10 cm is cut out on the side to throw snow through;
• a third of the open front part of the barrel is covered with a piece of metal (tin), and the ejection hole should be located along the center line of the damper;
• make a rotor;
• make a deflector that will direct the thrown snow in the desired direction;
• weld it to the body at the location of the hole for the ejection of snow mass;
• attach the scapula from below;
• install the brush cutter gearbox and secure it with bolts;
• install the rotor like a simple working knife.

The deflector is made like this:

• cut out a strip of metal, the width of which is 15 cm and the length of 30 cm;
• slightly bend the workpiece;
• 10 cm high sides are welded on the long sides so that the snow does not scatter at the exit.

The rotor is manufactured in the following sequence:

• cut rectangular strips measuring 25 by 10 cm from the metal sheet;
• cut and grind the plates to the shape of the blades;
• Weld them crosswise to the disk from the brush cutter.

A spatula is made from the remaining material. To do this, use a piece of tin 30 by 40 cm. The edges are folded along the long sides to form a two-centimeter side.

A self-made snow removal mechanism should be used at full throttle - this will extend the life of the device, because frequent pressing of the gas leads to engine failure. It is difficult to join thin metal by welding, because it easily burns through it. Therefore, the work must be performed by an experienced welder.

Ice screw from a lawn mower

The petrol mower can be converted into an ice auger. Factory analogues are quite complex and powerful devices. Structurally, the equipment consists of a screw connected to an engine (in most cases, two-stroke units are installed). Industrial devices are equipped automatic security systems, which turn off the ice drill in the event of a malfunction and eliminate the possibility of accidental starting. The models also differ in the number of speeds: one- or two-speed.

For lovers of winter fishing, it is expensive to buy a factory unit, and it is difficult to work with a manual device when the ice is thick. Converting an old trimmer into an ice auger will help save effort and money.

In addition to the lawn mower, the work will require a drill (factory or homemade) and tools to assemble the final structure. The difficulty lies in attaching the working part to the trimmer. Here, a lot depends on the existing model of brush cutter.

The following videos show how an ice screw made from a trimmer works:

The last video contains a possible option for attaching a drill to a lawn mower.

Compared to industrial analogues, a homemade ice auger is low power device, but for drilling holes it will be enough. The device also weighs little, which makes it easy to transport.

Other homemade options

Thanks to its economical and reliable engine, the trimmer is the basis for many other homemade products. Below we will briefly describe the possible options and provide video instructions for their implementation.

Converting a trimmer into a chainsaw

A gasoline brush cutter can also be turned into a chainsaw. To bring the rationalization idea to life, you will need old models of devices. All details will be taken from them. The video below shows the result.

Converting a trimmer into a gasoline saw involves installing this part from a brush cutter instead of its own engine.

Making a snowmobile for children

The trimmer can also be converted into a snowmobile. The process involves installing the engine on a structure equipped with skis. Due to the insufficient power of the motors available on brush cutters, the independent equipment created is capable of transporting only a relatively small weight. It also moves on relatively flat terrain. This homemade product will serve as an interesting and useful toy for children.

The movement of the snowmobile is carried out using a screw or chain drive.

The videos below show some possible options for homemade equipment:

Home craftsmen have come up with many different ways to adapt the motor from a trimmer to a snowmobile. Here the limitations are related to personal imagination and the existing list of unnecessary devices and equipment that can be used to create homemade snowmobiles.

Brush cutters can be converted into a motor drill, which can also be used as an ice drill if necessary. As a result, construction work will speed up and require less labor. A motor drill is used to make excavations for fence posts, pile foundations, and for erecting other structures.

Both electric and gasoline trimmers are converted for this purpose.

Motor scooter

In addition to the bicycle, the motor of the brush cutter is also installed on the scooter. The assembly principle is similar to creating a motorbike, only the design features of the scooter are taken into account.

Having at your disposal an old working and unnecessary trimmer, you can make various technical devices with your own hands, not only those discussed above. Your own imagination will suggest different options. But when creating any device, you should remember that it is safe for those around you and those using it.

tehnika.expert

How to design a bicycle with a trimmer motor?

Despite the fact that technological progress does not stand still, and every year we are pleased with new vehicles, today there are still those who like to do something unusual and original on their own. Who could have imagined at the end of the twentieth century that in the twenty-first century an ordinary bicycle would be supplemented with an engine from a lawn mower.

Before disassembling the trimmer and starting to build a bicycle with a motor from a brush cutter, you should pay special attention to the engine power. After all, it is the power that will determine how long you can ride a modernized bicycle. Ideally, the engine power should be at least 2 horsepower. If you install a lower power engine, your homemade bicycle may not even move.

How to make a drive?

On a bicycle with a lawnmower engine, torque is transmitted using a belt. To do this, you additionally need to produce:

• drive pulley, which is subsequently mounted on the engine;
• driven pulley, the diameter of which should be less than the diameter of the wheel rim;
• metal suspension for fixing the engine on a bicycle frame.

It will also be necessary to select the appropriate gearbox. The size of the belt that will drive the wheel is calculated after the pulleys are attached to the future motorbike.

How to install a trimmer motor on a bicycle?

Answering the question of how to make a motorbike from a trimmer, first we will answer the question: “How to fix the engine on the frame?” For reliable fixation, it is necessary to make an additional metal suspension that will resemble a frame with sides.

The configuration and dimensions of such a frame must correspond to the shape of the engine used. At the next stage, you should think about options for attaching the suspension to the bicycle frame; there may be two of them.

• Fastening with bolt connection.
• Fastening using electric welding.

Each option is good in its own way, but the second one is considered more durable, because with a bolted connection, the possibility of the bolts loosening due to vibration cannot be ruled out. At the last stage, options for fixing the engine itself to a fixed suspension are considered. Don't lose sight of the fact that you will have to remove the engine from time to time for maintenance. Therefore, the fixation must be reliable and convenient at the same time for quick removal of the engine.

In conclusion, I would like to note that you can make not only a bicycle, but also a scooter with a motor from a trimmer. To do this, it is necessary to make minor structural changes, but the assembly principle remains the same.

Safety is the basis of your health!

Considering that the vehicle has an engine installed, it is necessary to carefully consider safety issues, namely:

• reliability of the braking system;
• stability and integrity of the structure;
• the wheels must be “shod” with anti-slip tires.

Having carefully thought through these issues, you can not worry about your safety and enjoy a ride on an improved bicycle.

sadovij-pomoshnik.ru

In the world of cycling enthusiasts, it is difficult to surprise anyone with this or that technical sophistication. A bicycle with a trimmer engine has also ceased to be news on the bicycle market. These bikes are good as the main means of transportation around the city. They will fit perfectly into village or country life: neither the possible noise nor their relatively high speed will bother anyone. Bicycle innovation with a trimmer engine is actively winning the sympathy of riders. There are reasons for this.

Advantages of bicycle hybrids

Such bicycle hybrids have many advantages over conventional two-wheeled bikes:

• they are able to quickly gain high speed;
• electric motors operate from current, which can be created using a trimmer (this is economical, environmentally friendly and convenient);
• maneuverable and compact (irreplaceable qualities in endless city traffic jams);
• hardy;
• cheap to assemble and repair (all parts for assembly are sold in specialized stores or through advertisements);
• caring for them is simple: the main thing is that the engine always remains dry;
• ergonomic (a bicycle with an easily removable trimmer motor can be stored not only in a car garage, but also at home).

Among the disadvantages is the slight noise produced by the trimmer, but with proper connection this sound can be reduced to nothing.

Price issue

Of course, not everyone can buy such a bike. Bikes with such equipment are quite expensive (their price can be more than 100 thousand rubles). There are cheaper models that go on sale due to the fact that manufacturers are trying to save on bicycle frame material. It is clear that such bikes will not last long. If desired, the trimmer motor can be purchased separately and attached to the bicycle yourself.

For example, you can install a wheel motor, which is sold complete with gas and brake handles, a controller, and a Pas system.

In design, it is not too different from a regular mortar; it is installed on one wheel or two at once. Attaching it is not difficult: the installation is considered complete once the battery and throttle lever are attached. However, such a wheel will also cost a lot.

The most budget option is to install the trimmer engine yourself. A motor from an old moped will also work. You won’t need any extra effort, but accuracy and patience will be very useful.

Step one: engine selection

Before you begin the operation of re-equipping the bike, you need to select the engine type. He can be:

• gasoline;
• electric.

The advantage of the first is that it does not need a battery and is not connected to the mains. It is better to pay attention to engines of medium power (about 15.2 horsepower). Both two-stroke and four-stroke engines are suitable for a bicycle bike. 4 strokes are better, as fuel consumption is much less, and the noise is not heard as much as with two strokes.

Electric gas trimmer motors are not very powerful, which is why it makes sense to choose a model with a rating of no more than 1.2 kW.

Without mains, the battery electric motor can only run for a maximum of 2 hours, so you're running out of time like Cinderella. Otherwise, you will have to return, simply turning the pumpkin pedals.

Figure out for what purposes you need your super-advanced bike, then, in accordance with this, install what you like best.

Step two: prepare everything you need

Having figured out what we will install, we begin to prepare the parts for assembly. Both with the engine from the trimmer and the engine from the gas mower, the bicycle will be assembled according to the same scheme.

It is important that you have:

• a work bike (of any age and type, the main thing is on the go);
• directly the engine itself from the trimmer;
• belt or chain (the second is definitely stronger, therefore, preferable);


• a sprocket tailored for this engine (you can make it yourself);
• a clamp for attaching the engine to the bicycle (can also be made or purchased);
• cable connecting the engine and the throttle;
• controller;
• fuse;
• tensioner;
• a well-fixed exhaust pipe (for reliability when installing a gasoline engine, it is better to weld it);
• washers, bushing, screws, nuts, wires.

Step 3: Assembling the bike with trim motor

If the equipment is ready, you can begin assembly. We suggest breaking the whole process into several stages:

1. Installation of the sprocket. A pair of rubber spacers are attached to the rear wheel. We place the first one behind the knitting needles, the second one between them. We find the bushing on the outside of the wheel and put the sprocket on the bushing. We attach a crescent on the inside.

It is necessary to ensure that the movement from the motor to the sprocket is carried out gradually, avoiding deformation of parts of the mechanism. It is best to place a stainless steel plate greased with thermal paste on the frame. The controller will be attached there.

2.Engine mounting. Choosing a location for the engine. It is more convenient to place the motor behind the bike seat or on the trunk itself. We install the engine there and secure it with a clamp. Sometimes the engine is mounted in the center of the bike to maintain weight balance. It is attached in the same way: with clamps and clamps. You can optionally connect a wattmeter to measure energy consumption. On the trunk you immediately need to look at the area for attaching batteries.

3.Adjusting chain tension. It should be done immediately as soon as we pull the chain or belt onto the sprocket. We install a tensioner on the bike to help regulate the tension.

4. Fastening the throttle handle. Once we do this, we need to connect it to the motor using a cable.

5. Fastening the gas tank.

6.Installing the carburetor.

Immediately after installation, we check the reliability of the structure and eliminate minor problems. Our hybrid bike is ready!

Believe me: an updated vehicle is worth working on! Now you can safely go mushroom picking or fishing. Or you can easily and comfortably move around a noisy metropolis. Very soon you will appreciate all the advantages of a bicycle with an engine.

velofans.ru

Types of engines

• The gasoline (internal combustion engine) differs favorably from the electric one in its independence from the mains or battery. It can be 2-stroke or 4-stroke. Both are suitable for mounting on a bicycle, but the 4-stroke will make less noise and consume less gasoline. The power of such engines is 1–3 horsepower; for tuning a motorbike, it is better to choose from 1.5 liters. s., because supplying it with a motor of less power makes no sense.


• Electric motor. Trimmers are usually not equipped with powerful electric motors. As a rule, their power ranges from 0.35 to 1.2 kW. This is quite enough for the engine removed from the lawn mower to fit on the bicycle. The electric motor can be powered by a battery or from the mains. Battery models can operate without charging for 30–120 minutes, depending on the power and capacity of the engine, so if it is impossible to recharge, you will have to drive your bike in the classic way, pedaling.

aktsport.ru

How to make a motorbike from a trimmer with your own hands?

Making a motorbike with your own hands from a lawn mower is not as difficult as it might seem at first glance. First, determine what power the engine on the trimmer is. It must be at least 2 horsepower. Otherwise, the future unit will not be able to travel a long distance, or even not move at all.

The next stage is the design of the drive. To do this, you will need to make a drive pulley (attached to the motor), a driven pulley and a special frame for the motor. It is recommended to select a belt that transmits torque at the end of the assembly, based on the dimensions of the entire structure.

You can install the engine from a trimmer on a bicycle by making a special small frame from scrap metal scraps. The second point is attaching this structure to the bicycle. It must be reliable and at the same time easy to maintain. This suspension must be securely attached, resistant to vibration and, preferably, quickly and easily detached.

There are two mounting options:

• bolting;
• fastening by welding.

Each method has its pros and cons. Take into account all the features of your equipment and its operating conditions, and build on these data when choosing a mounting option.

Additionally, do not forget to attach parts such as a small fuel tank, exhaust pipe. It would also be a good idea to install an additional brake, since a bike with a trimmer engine will be much faster and more powerful than a regular one.

We also invite you to watch the video, which shows the process of constructing a motorbike from a trimmer:

sadovij-instrument.ru

snow blower

A snow blower is a machine that scoops up snow and throws it to the sides. It works on screw and rotary principles.

Screw mechanisms carry out a 1-stage intake of snow mass. The device is located in the front part of the unit, covered with a lid on the sides and top. In the process of rotating around its own axis, the auger captures, grinds snow and ice, crushes them into small fractions, transfers them inside the equipment to the throwing shovel, then to the outlet pipe. For freshly fallen snow, mechanisms with a smooth edge are suitable, for stale snow - with a serrated edge.

In a rotary type unit, the snow cover is cleared by a rotor. The nozzle is attached to the drive shaft and works like a vacuum cleaner. The blades protrude forward, making it much easier to grip snow. In a homemade snow blower from a trimmer, they are made of high-quality metal or durable plastic. The rotor creates increased centrifugal force. Snow is thrown away, passing through the pipe, at a distance of up to 12 m.

Both electric and fuel motors are suitable for snow blowers.

If the operating range of the mechanism is within the house, install an electric motor from the trimmer, taking into account the waterproofing of the unit. When carrying out work in summer cottages, it is better to install a low-power gasoline engine.

At the preparatory stage for a do-it-yourself snow blower from a trimmer, drawings of parts and assemblies are developed according to a well-thought-out plan, technology and based on the availability of material and equipment. For assembly, use the diagram of a lawn mower.

Necessary equipment for making a homemade machine:

1. Petrol trimmer with straight rod and gearbox.
2. Steel sheet 1.5 mm thick or metal barrel.
3. Milling cutter with teeth.
4. Set of tools:
   • drill;
   • drill;
   • spanners.
5. Bulgarian.
6. Welding machine.

First they make the rotor:

1. 4 rectangles 25x10 cm are cut out of a sheet of steel.
2. One of the corners of the long side of the part is turned into a blade shape.

The deflector is made from metal strips 30x15 cm, bent, sides 10 cm high are welded. For the blade, take a blank 30x40 cm, bend the edges to a height of 2 cm.

In order to make a snow blower with your own hands from a trimmer, perform the following algorithm of actions:

• the bottom of the barrel is 15 cm, cut in a circle;
• at the bottom of the structure, a hole is drilled for the gearbox protrusion and 3 additional ones are drilled for attaching the shield;
• on the side they make a square with a side of 10 cm for unloading the snow mass;
• 1/3 of the front part of the structure is covered with a metal sheet so that the square hole is located in the center of the damper;
• the finished rotor blades are welded in a cross pattern to the gas trimmer disk;
• a deflector is installed to the unit body at the point of snow emission and welded;
• a spatula is attached from below;
• install the gearbox, securing it with bolts;
• insert the rotor.

During work they use a welding machine. Welding on thin metal is a complex technological process that only a professional can handle. Therefore, it is better to use the services of an experienced welder when manufacturing some parts.

Bicycle with engine from trimmer

A homemade bicycle with a trimmer motor is a high-tech vehicle that differs from simple analogues in its high riding speed, practicality and reduced cost due to the use of cheap equipment.

To assemble a motorbike, the following equipment is required:

• the bike is in working order;
• trimmer motor;
• chain;
• tensioner;
• star;
• clamp;
• cable;
• fuse;
• controller;
• exhaust pipe;
• bushing, bolts, washers.

Converting a bicycle to a bike:

1. 2 rubber spacers are attached to the rear wheel: the first - between the spokes, the second - behind them.


2. The sprocket must fit the trimmer motor. It is inserted into the bushing, which is located on the outer part of the wheel. A crescent moon is attached to the inside.
3. The engine is mounted on the trunk or behind the seat using a clamp purchased or made from a steel plate with your own hands.
4. Install the chain on the sprocket and power unit and adjust it with a tensioner. It is not recommended to use belts instead of a chain. Under the influence of friction, they often become unusable and their service life is minimal.
5. The throttle handle and the engine are connected by a cable.
6. Attach the fuel tank and carburetor.
7. The exhaust pipe is welded with a weld seam.

Some craftsmen create a braking system and replace standard wheel tires with non-slip ones. After assembling all the components, be sure to check the operation of the bicycle. The functionality of the mechanism and its own safety will depend on this.

Ice screw

An ice drill made from a trimmer is a low-power unit for winter fishing enthusiasts, characterized by its low weight and easy transportation. In order to save money on the purchase of new equipment and the effort required when manually drilling ice, fishermen make them from old trimmers. For this you need:

• petrol mower;
• factory or homemade drill;
• improvised materials.

It is difficult to make an ice screw at home. The parts to pay attention to are the screws and the blade base.

To create augers you need:

1. Calculate the sizes of product segments.
2. Prepare metal blanks, mark, cut out a sector, weld the segments together. The result is a steel spring welded on one side.
3. Stretch the spring by a given step on a special machine in order to weld the segments on the other side.
4. Grab the flange and weld it to the pipe.
5. Boil the screw connections and paint.
6. When choosing auger rotation, take into account the direction of rotation of the gas-powered tool.

Converting a trimmer into a gas auger is suitable for units with a folding boom. The connection adapter is the easiest to prepare.

If it is necessary to increase the rigidity and stability of the mechanism, a durable frame is made to mount the gearbox and motor.

Motorized drills are units for making holes for installing wooden piles, laying foundations, and drilling wells. The operating principle and manufacturing method are similar.

Cultivator

For motorized tillage, make a cultivator from a trimmer with your own hands. The motor power must be at least 2 liters. With. When using an electric trimmer, you need to stock up on an extension cord so that the production process occurs throughout the entire area.

The main part of a motor cultivator is the nozzle. The rods of garden forks 10-15 cm long are suitable for this purpose.

The production of the part proceeds as follows:

• First you need to flatten the teeth to a width of 1 cm;
• sharpen the cutting blades for the cutters on an emery wheel;
• cut a ring with a diameter of 10 cm from a metal sheet using a jigsaw;
• grind the workpiece;
• Weld 3 cutters to a steel circle at an equal distance from each other.

If there is a reverse thread, the nozzle is screwed on after welding the pipe with the nut.

Snowmobile or snow scooter

Based on a motor, the trimmer can be converted into a self-propelled vehicle for moving on snow-covered flat terrain or a simple snow scooter (motorized sled) for a steep descent from a mountain.

Self-propelled gun is a frame structure, including:

• skis;
• engine;
• seat.

The frame is made of welded side members, onto which racks of 30x30 cm corners and cross members are welded. A steel pipe with a diameter of 14 mm is used as the drive shaft. Skis - support-steering. The snowmobile is moved by a screw or chain drive.

What else can you do with a trimmer?

A homemade motor scooter is a vehicle for traveling short distances on sidewalks and park paths. The mechanism reaches speeds of up to 40 km/h, due to the small wheels it has low stability, and is not intended for heavy loads and transportation of goods.

An old scooter that is mechanized is suitable for assembling the product:

• install stiffeners using a square metal profile to strengthen the frame;
• select stable and wide wheels, for example from a garden cart;
• a gearbox is made to transmit power from the engine to the rear wheel via a chain drive;
• install brake, gas handles and cables.

A motorized scooter is a good technique, but it must be remembered that children should not be given such a “toy”.

specmahina.ru

Like many, I started my journey with the legendary “deshnik”, which I put on a teenage bike “Tisa”. The device turned out to be funny, but it came with a petrol stench in the apartment, dirty hands and a shaman's tambourine for driving out evil spirits from the carburetor and ignition. The device did not perform any utilitarian functions.

But one day I was lucky enough to ride a mountain bike with a motor from a trimmer (gasoline mower) and a belt drive. Even though it was winter and I didn’t ride for long, I experienced a culture shock! In cold weather, the engine started perfectly, both cold and warm, pulled great, was perfectly clean and did not stink at all. And the “maximum speed” of 55 km/h with such traction was never even dreamed of by the “dealer”!

In general, a belt kit with a two-stroke motor from a trimmer with a power of 1.5 hp was soon purchased. plus a stronger mountain bike. There was no limit to happiness, but only until the first rain... It turned out that the drive belt loses strength when wet and breaks, changing it on the road is not very convenient, and besides, the cost of a new one is high. And rain in Moscow is not a rare phenomenon. But I was already used to riding such a comfortable motorbike and didn’t want to give up the idea, I decided - a chain and only a chain will save the “father of Russian democracy”!

The required gear ratio forced the use of a driven sprocket almost the size of a bicycle wheel, but fortunately, a gearbox from a Chinese minibike was found that fit perfectly onto the trimmer motor and allowed the use of sprockets of the usual sizes. The drive components are generally available bicycle ones: a single-speed wide chain, a 51-tooth sprocket from an HVZ bicycle and a “freewheel” (overrunning clutch with a sprocket) from a BMX, as well as a bicycle brake handle as a throttle trigger.

In addition to purchased parts, the design also contains many original components. These are steel racks that are attached to the bicycle frame, a motor mount (holds the gearbox with a motor), a chain tensioner with caprolon rollers, fastening the driven star to the wheel, an adapter from the gearbox shaft to the freewheel. He designed the parts himself and manufactured them at a nearby defense plant.

Of course, it was not possible to assemble the ideal structure the first time; I treated childhood illnesses for another year. I selected the optimal materials and design solutions, tried different layouts, and rode, rode, rode...

What happened in the end? Ultra-light (curb weight - 25 kg) motorized vehicle with a maximum speed of 55 km/h, dynamics at the level of simple Chinese scooters, fuel consumption of 2 liters per 100 km (power reserve on one tank 50 km), which does not stain with oil at all and does not smell of gasoline . The absence of smell and dirt helps me save on a garage or parking lot; the motorbike is in the apartment and does not bring any discomfort to the family. What’s especially pleasing is that all the “pedal” functions have been fully preserved. All that remains is gear shifting and easy pedaling (thanks to the “freewheel”); if there is a lack of traction, the engine can always be helped by the pedals and go up any hill. The chassis of a modern mountain bike is very durable and reliable, disc brakes provide very confident braking, and large wheels help to overcome our “directions” more easily.

After completing modifications to the design, I have already driven more than 4,000 km and during this time I only changed the drive chain once, twice the spark plug, and once cleaned the fuel system - a good indicator of reliability and unpretentiousness.

For its lightness and daring agility, I called my motorbike “Hare”. Now I drive the “Hare” every day to work, and in traffic jams it has no equal. It's so narrow and maneuverable that during rush hour I get home faster than I used to on a motorcycle, and the travel costs are ridiculous. There were also small trips, trips outside the city, even from Moscow to Yaroslavl. But a motorbike, of course, is not for the highway - it’s not comfortable to “beat” on it, but in the city and country trips I can’t imagine a better transport for myself!

www.zr.ru

Cultivator assembly

If you have a summer house or just a plot of land, then a cultivator will help facilitate soil cultivation. Traditionally, a hoe is used for these purposes, but working with it takes a lot of time and effort. Using a cultivator will reduce labor costs, and the entire process will take a shorter period of time. Factory-produced equipment is expensive, so if funds are limited, the question arises of assembling a cultivator yourself. Both gasoline trimmers and electric scythes are suitable for this.

To create a simple example of technology, you should stock up on the following tools and materials:

• a grinder with a set of discs (suitable diameter - 125 mm) for metal;
• drill with drills of various diameters;
• welding machine;
• electrodes;
• jigsaw or hacksaw for metal;
• an emery machine with two abrasive wheels of different grain sizes;
• a functioning petrol trimmer;
• with a pitchfork;
• a steel tube suitable in diameter for the brush cutter shaft;
• hand tools: keys, hammer, pliers, core, tape measure and marker;
• a sheet of metal with a thickness of 3 to 5 mm and dimensions of at least 10*10 cm.

The manufacturing process begins from the working part. Curved rods of garden forks will serve for this purpose. Their recommended length is from 10 to 15 cm - this is enough to loosen the soil.

The working nozzle is manufactured in the following sequence:

• the fork teeth are flattened to a width of 1 cm;
• on emery, using a circle with fine abrasive, sharpen the cutters;
• using a jigsaw, cut a circle with a diameter of 10 cm from the metal;
• process it on an emery machine until an almost ideal shape is achieved;
• Prepared cutters are welded to the metal circle at regular intervals (recommended quantity - 3).

With more than 3 pieces, the load on the equipment increases greatly.

The next step is to attach a weeding cutter to the trimmer. The process is greatly simplified if you have reverse thread, located at the end of the brushcutter shaft, onto which the manufactured working part is simply screwed. To do this, a tube with a nut is first welded to the cutter.

If you have plumbing experience and welding skills, converting a trimmer into a cultivator is quite simple. The financial costs are insignificant. If you use an electric scythe for your work, you will need to think about an extension cord so that it reaches over the entire area being processed.

DIY lawn mower

The lawn mower facilitates the process of caring for decorative herbaceous plantings, and also speeds up work when there are large areas that need to be processed. There are many ready-made, easy-to-use models on the market for such equipment, but they are expensive and therefore not available to everyone. They also quickly fail if there are large weeds and stones on the site. Homemade products are much cheaper than factory-made analogues, and they are also more practical to use.

The components of the lawn mower design are:

• engine (gasoline or electric), which is the basis of the created mechanism;
• a frame designed to attach all parts of the device to it;
• casing for protection;
• knives;
• handles and wheels;
• control system block for the unit being created.

Craftsmen have invented many different ways to convert a trimmer into a lawn mower. The simplest option is shown in the video:

Very common in practice frame option homemade device. The tools and materials for independent implementation of the project will be the same as in the previous case. Plus you will also need:

• sheet of plywood (or metal 3-4 mm thick);
• metal corner 25x25 mm;
• 2 m of pipes of different diameters.

The manufacturing process is as follows:

• a rectangular frame 50x60 cm is welded from the corner;
• wheels of the required size are installed in the corners, which can even be taken from old toys;
• plywood cut to size is fixed on top of the frame or metal is welded;

• a hole is made in the center of the cart for the trimmer rod and fastenings for it;
• make a knife or choose a suitable ready-made option;
• then attach the brush cutter to the trolley;
• install the knife;
• install a casing on the back of the cart to protect against cut grass flying in different directions;
• start testing the device.

Important! The diameter of the wheels is selected so that the knives do not reach 5 centimeters to the soil.

There are many ways to make knives, and their shape (design) also varies radically. In this case, various materials and old tools are used (for example, an old wood saw). The main principle is that the knives are well sharpened and balanced - this is necessary to prevent vibration of the equipment during operation.

It is often found that they do not use an old brush cutter, but only the engine from the trimmer and its control unit. In this case, you will need to make handles for the trolley and secure all the structural parts to the frame.

When assembling the lawn mower and while working with it, be sure to adhere to safety precautions to avoid injury. You can also attach a bag to the unit to collect the mowed grass.

We make a motorbike

Home craftsmen managed to make a more practical vehicle out of an ordinary bicycle - they replaced it with an engine from a lawn mower. At the same time, options with both a gasoline engine and an electric motor are practically implemented.

Required tools, materials and parts

Electrical engine The bike is powered by a battery, which, depending on the power of the unit (it is taken 0.35-1.2 kW), lasts from 30 minutes to 2 hours.

Used to modify a bicycle two- or four-stroke gasoline engines. The latter option consumes less fuel and is less noisy during operation. The recommended power is from 1.5 hp, and the optimal option is 2 hp. When using a motor with a lower parameter, the motorbike will barely move or will not be able to move at all.

The rotational movement from a gasoline engine to a bicycle wheel occurs through the use of belt or chain drive. Because of this, you will additionally need to make the following details:

• a metal suspension in the form of a frame with sides to secure the motor to the bicycle frame;
• driven and driven pulleys or sprockets for attachment to the engine and wheel, respectively.

From a practical point of view, using a chain drive is preferable to a belt drive because the belt wears out faster, especially if it gets wet regularly.

To implement the project you will need to choose suitable gearbox. After installing the pulleys, select the belt of the desired size.

The dimensions of the frame for the engine depend on its dimensions. The suspension itself is secured to the frame of the motorbike:

• bolted connection;
• using welding.

The last option is the best in terms of strength if the welder is good. If the design of the bicycle frame allows, then the suspension is replaced with a clamp, which secures the engine. This mounting option is more practical. The method of fixing the motor should be convenient, reliable and allow it to be quickly removed if necessary.

Doing all the work yourself with an old, functioning trimmer, a bicycle and a small set of tools will require time and patience from the performer.

Sequence of assembly of the structure

To independently assemble a bicycle with a gasoline engine, you will also need, in addition to the materials and parts considered, the following:

• controller;
• cable for adjusting motor operation;
• fuse;
• welded exhaust pipe;
• sleeve;
• washers;
• bolts;
• chain tensioner.

The motorbike is assembled according to the following algorithm:

• put a sprocket on the rear bicycle wheel;
• use a clamp to fix the engine (with a sprocket on the shaft) on the frame behind the seat or on the trunk, if the design features of the bicycle allow, otherwise you will need to choose another convenient place for this purpose;
• put the chain on the sprockets of the wheel and motor;
• attach the tensioner;
• adjust chain tension;
• fix the throttle;
• stretch a cable from it to the engine;
• secure the fuel tank;
• install the carburetor.

For personal safety When operating a motorbike, they upgrade the braking system, change the wheel tires to non-slip products, and check the integrity and stability in motion of the created structure. After the entire structure is assembled, it is tested, having previously been inspected for defects.

Homemade snow blower

There are many options for creating snow removal equipment based on a trimmer. The simplest method of modernization is to replace the knife with a rotor. This snow blower works like a shovel, but it is simply moved through the snow: the device scoops it up and moves it to the side.

To carry out the planned alteration, you will need the following materials and tools:

• a brush cutter with a straight rod, at the end of which a gearbox is installed;
• a metal keg, even a beer keg will do, for example, for the Baltika drink;
• a trimmer cutter with many teeth (used for mowing dense thickets of grass);
• drill with drills;
• grinder and welding machine.

Instead of a barrel, you can use a thin sheet of metal (tin) 1.5 mm thick.

The snow blower assembly process is performed in the following sequence:

• cut the barrel in a circle, 15 cm from the bottom;
• make a hole in the bottom for the brush cutter gearbox and drill 3 more small holes to secure its shield;
• a square of 10 by 10 cm is cut out on the side to throw snow through;
• a third of the open front part of the barrel is covered with a piece of metal (tin), and the ejection hole should be located along the center line of the damper;
• make a rotor;
• make a deflector that will direct the thrown snow in the desired direction;
• weld it to the body at the location of the hole for the ejection of snow mass;
• attach the scapula from below;
• install the brush cutter gearbox and secure it with bolts;
• install the rotor like a simple working knife.

The deflector is made like this:

• cut out a strip of metal, the width of which is 15 cm and the length of 30 cm;
• slightly bend the workpiece;
• 10 cm high sides are welded on the long sides so that the snow does not scatter at the exit.

The rotor is manufactured in the following sequence:

• cut rectangular strips measuring 25 by 10 cm from the metal sheet;
• cut and grind the plates to the shape of the blades;
• Weld them crosswise to the disk from the brush cutter.

A spatula is made from the remaining material. To do this, use a piece of tin 30 by 40 cm. The edges are folded along the long sides to form a two-centimeter side.

A self-made snow removal mechanism should be used at full throttle - this will extend the life of the device, because frequent pressing of the gas leads to engine failure. It is difficult to join thin metal by welding, because it easily burns through it. Therefore, the work must be performed by an experienced welder.

Ice screw from a lawn mower

The petrol mower can be converted into an ice auger. Factory analogues are quite complex and powerful devices. Structurally, the equipment consists of a screw connected to an engine (in most cases, two-stroke units are installed). Industrial devices are equipped automatic security systems, which turn off the ice drill in the event of a malfunction and eliminate the possibility of accidental starting. The models also differ in the number of speeds: one- or two-speed.

For lovers of winter fishing, it is expensive to buy a factory unit, and it is difficult to work with a manual device when the ice is thick. Converting an old trimmer into an ice auger will help save effort and money.

In addition to the lawn mower, the work will require a drill (factory or homemade) and tools to assemble the final structure. The difficulty lies in attaching the working part to the trimmer. Here, a lot depends on the existing model of brush cutter.

The following videos show how an ice screw made from a trimmer works:

The last video contains a possible option for attaching a drill to a lawn mower.

Compared to industrial analogues, a homemade ice auger is low power device, but for drilling holes it will be enough. The device also weighs little, which makes it easy to transport.

Other homemade options

Thanks to its economical and reliable engine, the trimmer is the basis for many other homemade products. Below we will briefly describe the possible options and provide video instructions for their implementation.

Converting a trimmer into a chainsaw

A gasoline brush cutter can also be turned into a chainsaw. To bring the rationalization idea to life, you will need old models of devices. All details will be taken from them. The video below shows the result.

Converting a trimmer into a gasoline saw involves installing this part from a brush cutter instead of its own engine.

Making a snowmobile for children

The trimmer can also be converted into a snowmobile. The process involves installing the engine on a structure equipped with skis. Due to the insufficient power of the motors available on brush cutters, the independent equipment created is capable of transporting only a relatively small weight. It also moves on relatively flat terrain. This homemade product will serve as an interesting and useful toy for children.

The movement of the snowmobile is carried out using a screw or chain drive.

The videos below show some possible options for homemade equipment:

Home craftsmen have come up with many different ways to adapt the motor from a trimmer to a snowmobile. Here the limitations are related to personal imagination and the existing list of unnecessary devices and equipment that can be used to create homemade snowmobiles.

Brush cutters can be converted into a motor drill, which can also be used as an ice drill if necessary. As a result, construction work will speed up and require less labor. A motor drill is used to make excavations for fence posts, pile foundations, and for erecting other structures.

Both electric and gasoline trimmers are converted for this purpose.

Motor scooter

In addition to the bicycle, the motor of the brush cutter is also installed on the scooter. The assembly principle is similar to creating a motorbike, only the design features of the scooter are taken into account.

Having at your disposal an old working and unnecessary trimmer, you can make various technical devices with your own hands, not only those discussed above. Your own imagination will suggest different options. But when creating any device, you should remember that it is safe for those around you and those using it.

Hello everyone, in this instruction we will look at how you can install a gasoline engine on a bicycle. The design of the bike does not change much, except for the modification of the rear drum brake; instead, an additional sprocket for the gas engine is installed.

Materials and tools used

List of materials:
- engine from a lawn mower;
- driven and driving sprockets plus chain;
- a bicycle with a drum brake (or a wheel with a drum brake);
- (from a moped or similar);
- steel tubes and plates;
- bolts and nuts.

List of tools:
- spanners;
- welding machine;
- Bulgarian;
- drill and screwdriver.

Homemade manufacturing process:

Step one. Engine preparation
We will need the engine from a gasoline trimmer. It works well as it has an easy-to-install design, unlike a chainsaw.

The engine is already equipped with an automatic centrifugal clutch, which will allow the engine to idle and coast the bike, which is very economical.

First we will need to cut off the nose of the engine where the drive shaft is located. This is done so that the drive sprocket can be installed. The author’s body is made of plastic; he can easily cut it with a grinder.

To install the sprocket, the author grinds the gearbox shaft with a grinder; as a result, the sprocket can now be put on the shaft with minimal clearance. Well, then we weld the star. For the author, it warmed up during welding to a red glow, which is not very good, since the steel can become soft after this. However, after welding, the author poured water on the star, quite possibly this will harden it. Also, water will prevent the shaft from overheating and melting important engine components.

First, we center the sprocket with bolts and nuts, and then weld the parts. The author additionally secured the sprocket with two bolts and nuts to the spokes. We paint the star so that it does not rust and looks beautiful.

When the engine is already fixed, we prepare the chain, increase or decrease its length depending on the needs. You can assemble the chain using locks, or you can make it whole if you have a device for pressing out connecting pins, like the author.

And the fasteners are attached to the frame by the rear axle of the wheel, as well as to the fork using self-tapping screws. In general, this entire design looks quite reliable. We paint this entire structure so that it does not rust.

After this, you can start the engine and see how everything works. It is very important that the chain does not fly off, otherwise it will immediately get into the spokes and jam the rear wheel, which is very dangerous.

We also need to connect the ignition, this will allow us to turn off the engine if something goes wrong. We definitely install a rear brake; we now have a classic lever brake, which is assembled above the wheel rim.

Modern trimmer is much more than just a garden tool. The high power of most brush cutters makes it possible to use them as a basis for assembling all kinds of homemade products, not the least of which is a bicycle with a trimmer engine. This self-propelled device is distinguished by its simplicity of design, high traction parameters, and ease of maintenance. The relatively low fuel consumption of the moped makes it possible to cover significant distances on it, and its high repairability allows you to independently eliminate almost any homemade malfunction.

Motorcycle from a trimmer - what to pay attention to before assembly?

Before you start assembling a motorbike with your own hands from a lawn mower, you will need to choose an engine that will become the basis of your homemade product. It is the power of the internal combustion engine that directly affects the traction characteristics and endurance of the device.

In practice, homemade products equipped with engines from trimmers with a power of 3 hp or more performed best. With. and higher. Each scooter with a motor is capable of carrying 1 adult with hand luggage, while having an additional reserve of torque.

It is strictly not recommended to assemble a homemade product based on electric motors from trimmers. This is due to the low power reserve of such motors, as well as their instability in bad weather conditions. If there is no other choice, and the manufacturer only has an electric motor at hand, then when installing the engine, special attention must be paid to protecting it from external factors: moisture, dust, debris. During further operation of the scooter with an electric motor, the trimmer will need to take frequent breaks to cool the engine. Otherwise, the engine will quickly fail.

Having dealt with the motor, you need to move on to the bicycle frame. It will need to be equipped with an additional platform on which the engine and fuel tank will be mounted. In this case, the latter should be located above the engine from the trimmer so that fuel flows to the power unit naturally.

It is very important that homemade bicycles with a trimmer motor are equipped with a comfortable handlebar, on the handles of which you can place all the switches necessary for work. This will simplify the operation of the homemade product when moving at high speed.

How to make a moped with a motor from a brush cutter?

Assembling a homemade trimmer begins with studying detailed drawings. The diagrams must indicate the dimensions of the parts used, as well as the sequence and methods of their installation into the overall structure of the moped.

Their list includes:

• drive motor;
• gearbox;
• brake system;
• welding machine;
• Bulgarian;
• set of bolted connections;
• set of wrenches and screwdrivers.

The further procedure for assembling a homemade moped from a trimmer should be divided into several stages. Each of them must be treated with special responsibility, since not only the quality of the device depends on it, but also the safety of the operator during its operation.

For self-propelled movement, a scooter must be equipped with a belt that receives torque from the engine and transmits it to the drive wheel.

To assemble a high-quality drive for a homemade product, the operator needs to use:

• driven pulley - this unit should be slightly smaller in diameter than the bicycle wheel rim;
• drive pulley - this element must be attached to the motor from the trimmer during assembly;
• steel suspension - it will be used to attach the motor to the frame of a homemade moped.

To assemble the drive, you also need to assemble the gearbox. Once the pulleys are installed on the bike, the manufacturer will be able to install a belt with the appropriate length and width.

Self-installation of the engine

Once the drive has been assembled and installed, the operator can begin installing the motor. For safety reasons, the internal combustion engine from a lawn mower must be mounted on a moped using an additional suspension made of metal. The fastening element itself should resemble a frame welded from steel channels and angles.

The shape and dimensions of the frame must correspond to the dimensions of the motor used. Fasteners can be attached to a bicycle frame in different ways. If in the future the motor will not be removed from the moped, then the engine mount can be welded to the device. If in the future the motor will be removed for subsequent installation back on the trimmer, then a pair of bolted connections will be suitable for attaching it to the moped.

When installing an internal combustion engine from a trimmer to a moped, you must take into account in advance the need for further engine maintenance. To make it easier for the operator to repair the internal combustion engine, the operator needs to have free access to the most frequently replaced engine parts: the air filter, cylinder and seals.

Installation of the brake system.

A homemade bicycle with a lawnmower engine must be equipped with a braking system. To make it, you will need to use a pair of brake discs, installed one on the drive and driven wheels. To control the brakes, the discs must be connected using metal cables to levers mounted on the handles of the standard handle.

In addition to installing the brakes, the operator will also need to replace the standard tires on the moped's wheels. Not only the cross-country ability of a self-propelled bicycle depends on this, but also the safety of the owner when riding off-road.

To extend the life of a moped with a trimmer motor, its owner needs to adhere to a number of important rules.

Their list includes:

• timely replacement of consumable parts - if you do not change the air filter and other elements of the moped for a long time, then its important mechanisms will begin to work under increased load. This will lead to a more complex breakdown of the homemade product:
• use high-quality gasoline and motor oil for refueling - if you fill the fuel tank of a moped with low-quality gasoline, then quite quickly the bicycle owner will be faced with the need to replace the engine CPG;
• lubricate the gearbox used in a timely manner - this will prevent the mechanism from operating under high loads;
• mix gasoline and oil strictly in the proportion specified by the trimmer manufacturer - if you add more oil than specified in the instructions, this will lead to flooding of the engine spark plug;
• regularly check the condition of the fasteners - bolts that are not fully tightened threaten not only with the engine falling, but also with injury to the owner;
• paint scratches and chips immediately after they appear on the frame - this will prevent further corrosion of the moped’s frame;
• Do not allow the trimmer to overheat the engine - if you use the moped frequently, you need to take breaks. At the same time, if the bicycle is used in hot weather, then its motor should be allowed to cool down every 15 minutes of riding. If it is cool and windy outside, then the number of breaks can be reduced to 1 time for every 25–30 minutes of driving;
• promptly change the tires on moped wheels using a trimmer - in winter, you need to install tires with spikes on homemade wheels. This will prevent wheel slipping and increase safety when using the bicycle.

Also, the owner of a bicycle with a trimmer motor will need to monitor the weight of the cargo transported on the homemade product. If the luggage is too heavy, it can lead to overheating and serious damage to the engine, as well as other mechanisms of the device.

In the great variety of shapes and designs of structures in the world of bicycles, models equipped with motors are no longer considered a curiosity. Such bikes are quite expensive, many manufacturers are trying to reduce their cost by using cheap equipment and hi-ten frames, which does not make such a bike practical to use. There is a wide range of bicycle motors on the market, which also come with all the parts necessary for installation. Equipping your bike with such a motor will not be difficult, but if you want to save a lot of money, as an option, you can simply remove a suitable motor from an old moped, chainsaw or brush cutter and create one from a trimmer with your own hands.

Upgrading an ordinary bicycle in this way will not require enormous effort, but you will have to be patient and tinker a little. First you need to decide on the type of engine that will be installed on the bike.

Types of engines

• The gasoline (internal combustion engine) differs favorably from the electric one in its independence from the mains or battery. It can be 2-stroke or 4-stroke. Both are suitable for mounting on a bicycle, but the 4-stroke will make less noise and consume less gasoline. The power of such engines is 1–3 horsepower; for tuning a motorbike, it is better to choose from 1.5 liters. s., because supplying it with a motor of less power makes no sense.
• Electric motor. Trimmers are usually not equipped with powerful electric motors. As a rule, their power ranges from 0.35 to 1.2 kW. This is quite enough for the engine removed from the lawn mower to fit on the bicycle. The electric motor can be powered by a battery or from the mains. can work without charging for 30–120 minutes, depending on the power and capacity of the engine, so if it is impossible to recharge, you will have to drive your bicycle in the classic way, pedaling.

We install the engine from a brush cutter on a bicycle

There are no differences in the design of the motor from the trimmer and the motor removed from the lawn mower, so it is installed in almost the same way. But paired with such a motor, it is better than a belt, because if it gets caught in the rain, the belt will very quickly wear out and become unusable.

Grass trimmer

So, to construct a bicycle with a trimmer engine, we will need:

• a working bicycle (it doesn’t matter whether it’s new or used, as long as it works);
• engine from trimmer;
• chain (you can, of course, use a belt for the same purpose, but this is very impractical and will not last long);
• tensioner;
• sprocket (suitable for the selected engine, possibly homemade);
• a clamp that attaches the motor to the bicycle (you can make it yourself from some metal plate or buy it without bothering);
• small engine with throttle handle;
• fuse;
• controller;
• exhaust pipe (if we install a gasoline engine, we weld the pipe);
• bushing, washers, screws.

1. We put an asterisk. We attach two rubber pads to the rear wheel, one between the spokes, the other behind them. We put the star on the bushing located on the outside of the wheel, and attach the crescent on the inside.
2. We secure the engine with a clamp. Depending on the bike model, we choose a place to mount the motor. Most often it is convenient to place it either behind the seat.
3. We tighten the chain on the sprocket and the engine and immediately install the tensioner to adjust the chain tension.
4. We attach the throttle handle and draw a small cable from it to the motor.
5. We mount the gas tank.
6. Install the carburetor.

When a bicycle with a trimmer motor has already been built, you need to carefully check all the mechanisms for any defects, since not only the functionality of your bike, but also your own safety will depend on this.