How to install a chainsaw engine on a bicycle. DIY bicycle, moped, go-kart, ATV from a chainsaw

At one time, probably in every village there was at least one teenager who had a homemade moped, converted from an old bicycle, or the ultimate dream of any teenager - a branded moped "Riga". Of course, these were very imperfect models that often broke down, and with which you had to tinker for a week, only to then ride with the breeze (as much as 40 km/h!) for a couple of minutes. Those days are long gone, but nowadays motorized bicycles are experiencing a rebirth and more and more manufacturers are trying to produce similar models. Most often, such models are called motorbikes, electric bicycles, or simply bicycles with a motor.

Their main difference is that the basis is a bicycle, with a bicycle frame, while for mopeds the frame is made specially - although the difference, in fact, is not that big and is most likely emphasized based on the marketing policies of companies -manufacturers. Currently on the market are the following types bicycles with a motor: Bicycle with a gasoline engine As a rule, such models are equipped with engines with a volume of no more than 40 cubic centimeters and a maximum power of about 4 hp. Most often, such motorbikes have a manual ignition device (that is, you need to pedal).

There are also home-made models with engines from a chainsaw or lawn mower - in general, whoever knows what (you can read more in the article “How to make a bicycle with a motor yourself”). Maximum speed similar bicycles with a gasoline engine are approximately 40 km/h, and their weight is about 30 kg - not much of a ride with the engine off. In addition, they are very noisy and you can forget about a quiet ride while listening to birdsong.

In general, we can say that it is better to buy a full-fledged scooter than a bicycle with an engine - it is too impractical, noisy and inconvenient.

Compared to the previous type of motorbikes, this one certainly has a number of advantages: almost silent running, no exhaust gases and no need to refuel the bike with gasoline (you must admit, it sounds strange) and, as a result, high environmental friendliness. The main elements of such a bicycle are an electric motor and a battery. To charge the bike, you just need to plug it into a power outlet and leave it, depending on the type of battery, from 2 to 8 hours.

Some models also feature charging while pedaling. Thus, when driving on a flat surface, you can charge the battery, and if you need to overcome an incline, use the previously accumulated energy to run the engine. A bicycle with an electric motor, depending on the model, can reach speeds of up to 40 km/h, and if you consider that while the engine is running you can also spin the pedals, then with appropriate training you can reach higher speeds. However, it is worth mentioning that there are models that, without the help of a cyclist, ride very hard even on a flat surface, but when going uphill they stop completely.

Therefore, when choosing a bicycle with an electric motor, you should pay special attention to the power of the electric motor itself and the capacity battery. Bicycles with a motor or laziness is the engine of progress A bicycle with an electric motor from the company “Grace” The design of bicycles with an electric motor, unlike gasoline models, is impressive, especially when the electric bicycle is produced by such well-known companies as Yamaha or Honda, but there are also frankly ugly models from little-known companies. Bicycles with a motor or laziness is the engine of progress Bicycles with an electric motor “Yamaha” There are also options when the electric motor is installed directly in front wheel- so you can purchase it separately and turn your regular bicycle into an electric bicycle.

Bicycle with an electric motor “Honda” At the same time, it is worth noting that electric bicycles, like gasoline models, do not need to be registered with the traffic police or have any rights or similar documents for them (of course, there are rumors that soon ordinary bicycles will be able to be registered , but so far, fortunately, it hasn’t come to that and I hope it won’t come to that).

In general, the electric bike is quite competitive and is perfect for pleasant rides without extra effort over fairly long distances, although, as they said in one of the old comedies: “Shurik, this is not our method.”

How to make a bicycle with a motor yourself?

How to make a bicycle with a motor yourself An example of a homemade bicycle with a motor Engine It’s worth saying right away that the market offers a ready-made kit consisting of an engine and the equipment necessary to install it on a bicycle. A ready-made solution for those who want a bicycle with a motor, but are not ready to make the necessary fasteners themselves and think about choosing the most suitable engine. It’s most likely not worth going into more detail into the characteristics of this product - everything is listed on the manufacturer’s website.

For those who believe that buying a ready-made solution is at least unsporting, at the first stage there is perhaps main question: Which engine is better to choose? Most often, gasoline engines from ordinary household lawn mowers (trimmers) are used to solve this problem. At the same time, do not forget that lawn mowers are equipped with engines of different power, which is important when installing it on a bicycle. For example, a 1 hp engine. It is unlikely that he will be able to move the bicycle from its place - he will need to be helped by the pedals. And when going uphill, you won’t be able to completely forget about the pedals. While the 2 hp engine is already able to climb hills and accelerate the bike without additional pedaling.

Naturally, the more powerful the engine, the heavier and larger it is. How to make your own bicycle with a trimmer motor. Chainsaw engines are sometimes used for installation on a bicycle. In this case, when choosing, you should also be guided by its power, weight and size. How to make a bicycle with a chainsaw motor yourself The reader, of course, may be surprised: “How can this engine from a saw or trimmer be used on a bicycle? He's very noisy." And he will be absolutely right: when driving with the engine running, there is no way to enjoy the singing of birds.

Of course, you can use different engine options. For example, an old Soviet D6, which can be found at a flea market, or some kind of engine from Chinese scooters with a built-in variator would be nice. Drive Most often, a belt is used to transmit rotation from the engine to the wheel. To do this, you need to make a corresponding pulley for the engine, and as a driven pulley you can use a regular bicycle rim a couple of inches smaller than the rim of a bicycle wheel.

The approximate project budget consists of the following components: Engine: 8,000 - 30,000 rubles; Pulleys: 1,000 - 5,000 rubles; Drive belt and tensioner roller: 1000 - 5000 rubles; Fastening elements: 100 - 5,000 rub.

Thus, as you can see, making a moped out of a bicycle is not such a cheap pleasure, and in some cases it is advisable to buy a full-fledged scooter.

If you read an article about bicycles with a chainsaw motor and got the idea to do something similar, then be prepared for the fact that you will have to put in a lot of effort and show engineering ingenuity to achieve your goal. This article discusses the main approaches that are usually used when making a homemade motorized bicycle.

It’s worth saying right away that the market offers a ready-made kit consisting of a bicycle engine and the equipment necessary to install it on the bicycle. This is a ready-made solution for those who want a bicycle with a motor, but are not ready to make the necessary fasteners themselves and think about choosing the most suitable engine.

For those who believe that buying a ready-made solution is at least unsporting, at the first stage perhaps the main question arises: which engine is better to choose? Very often, a chainsaw engine is used to solve the problem. At the same time, do not forget that this tool is equipped with engines of different power, which is important when installing it on a bicycle. For example, a 1 hp engine. It is unlikely that he will be able to move the bicycle from its place - he will need to be helped by the pedals. And when going uphill, you won’t be able to completely forget about the pedals. While the 2 hp engine is already able to climb hills and accelerate the bike without additional pedaling. Naturally, the more powerful the engine, the heavier and larger it is.

The reader, of course, may be surprised: “How is this the engine of a chainsaw or trimmer, but for a bicycle? He's very noisy." And he will be absolutely right: when driving with the engine running, there is no way to enjoy the singing of birds.

A belt is most often used as a drive to transmit rotation from the engine to the wheel. To do this, you need to make a corresponding pulley for the engine, and as a driven pulley you can use a regular bicycle rim a couple of inches smaller than the rim of a bicycle wheel.

That’s basically all that can be said in general terms about making a bicycle with a motor. Rest technical solutions depend on the type of selected engine, bicycle, drive type and others design features. In general, when installing the engine, you will have to think a lot and do it yourself.

The approximate project budget consists of the following components:

• Engine: 3,000 - 30,000 rubles;
• Pulleys: 300 - 5,000 rubles;
• Drive belt and tensioner roller: 500 - 5000 rubles;
• Fastening elements: 100 - 5,000 rub.

Thus, as you can see, making a moped out of a bicycle is not such a cheap pleasure.

Materials and tools for homemade:
- an engine from a chainsaw (possibly with a damaged body, but with a normal piston);
- clamps;
- bolts with nuts;
- bicycle chain;
- a small sprocket (attached to the engine clutch);
- cable, handle (for throttle control);
- welding;
- Bulgarian;
- spanners;
- headlight, rear brake, battery, generator and other electrical equipment (if desired).

The process of installing an engine on a bicycle:

Step one. We decide on the installation location and remove the excess
First of all, you have to decide where to install the engine. Bicycle designs vary, just like chainsaws. The author installs the engine above the drive sprocket. The principle boils down to using a chain to connect the engine shaft to the drive sprocket of the bicycle, on which the connecting rods with pedals are located. In other words, the engine here simply replaces the cyclist’s legs. This design is simple, and if desired, you can make the bike change gears.

Step two. Making an asterisk
The most difficult part of the homemade product is finding the drive sprocket that is installed on the clutch. To get good towing power, the sprocket should be as small as possible. If you can’t find one, you can try turning it yourself, although you will need good strong steel, which will need to be hardened, otherwise the sprocket will quickly wear out.

Step three. Fastening the engine
An important task is to securely fasten the engine, otherwise, if it comes off, everything can end in disaster. Here you will need corners, and aluminum ones are best, as they are lighter. Choose their number and location depending, again, on the characteristics of the chainsaw and the bicycle. Everything is secured with bolts and nuts. The author drills through the bicycle frame for bolts; you can do the same with the body of a chainsaw.

In addition, install in convenient place switch and connect the ignition wire to it. This will make it easy to turn off the engine if necessary.

You can also install tubes on the bolt bars to make the running boards more stylish.

Engine, today it has become much easier to do this. At the moment there are already ready-made solutions For such modifications, for example, you can buy a ready-made kit and all you have to do is install it on the bike. That’s it, after this the “great” will turn into a small moped, capable of driving up to 50 km/h, or even more.

Such transport is beneficial for those who often go to the country, to fishing, to the village, to the garage, if it is far away. On such a bicycle moped, fuel consumption will be minimal; there is probably no other vehicle like this that would consume more less fuel. In addition, even if you run out of gas, you can get to your destination in the classic way, using pedals.

Another advantage of this technique is that it does not require driver's license, after all, in fact it is still a bicycle, because you can only turn on the engine outside the city.

Materials and tools for homemade:

1. First of all, you will need an engine. The more powerful it is, the faster the bike will go. On average, today there are chainsaws with a power of 1.5-2 Horse power Yes, this power is quite enough to ride a bicycle moped at a speed of about 30-40 km/h.
2. Capacity for creating a gas tank. It is best, of course, that it be made of metal, it will be safer. But you can also use plastic containers.
4. Bicycle cable and throttle handle to control the throttle.
5. Wires and switch for connecting the engine ignition.
6. Bolts, nuts, elements to create a bracket with which the engine will be attached to the frame.
7. Pulleys, belts, chains and other elements thanks to which the bicycle wheel will be connected to the engine.

Step one. Deciding on the type of motion transmission
Perhaps the most difficult thing in this homemade product is to transfer movement from the motor to the wheel. Here it is important to correctly calculate the gear ratio. If the gear ratio is small, the motor simply may not be able to handle such a load and the bike will not move. If the gear ratio is too large, the bike will ride very slowly, and the engine, operating at high speeds, will overheat.

You can calculate the gear ratio using the example of one of the authors who managed to assemble a similar technique. With an engine power of 1.78 horsepower and a speed of 12500 rpm, he used gear ratio 1:26. The chainsaw used was a Homelite CSP3314 model.

Step two. Clutch
Clutch is also a very important element in this type of transport. There are two options here on how to do it. The chainsaw already has a centrifugal clutch, that is, it is a clutch that automatically engages at certain speeds. So the wheel can simply be connected to this clutch, this is the simplest option.

Some other DIYers do not use the saw clutch, but connect it to a bicycle ratchet. This system works very simply: after accelerating and releasing the gas, the bike rolls by inertia, while the ratchet is not interconnected with the wheel. That is, having “turned the lawn” once, you can then roll in a straight line at idle for a very long time.

As for the ignition, everything is simple here, you need to stretch the ignition wire from the engine, and make a switch on the handle so that the engine can be turned off if necessary.

Also, to control the engine, you need to make a throttle handle, it can be borrowed from mountain bikes(buy ready-made). You need to remove the lock from the handle so that it moves smoothly, and then connect the cable to throttle valve carburetor

A moped, like a bicycle, is an economical and convenient means of transportation. This vehicle travels faster due to the presence of a drive. Every cyclist's dream is to move quickly, effortlessly. It is possible to make your dream come true: you just need to equip the bike with an engine.

Let's look at how to properly construct a moped from a chainsaw using available materials and parts.

How to make a moped from a chainsaw and a bicycle

You should start by finding a suitable motor. The heart of a chainsaw is suitable for this role. Use Friendship. Remember power. Homemade moped will not be able to move away if the engine power is less than 2 liters. With.
To create a bicycle with a chainsaw motor with your own hands, you will need other components:

• battery;
• pulleys, gears;
• transmission belt or chain;
• drive cable;
• clamps for fastening;
• tools: screwdriver, pliers, etc.

The main place where the elements of the future unit will be placed is the bicycle frame. Here, the battery is mounted using fastening clamps on the top pipe, at the junction of the pipe passing under the saddle and the front bottom pipe, the engine is mounted, and the gas tank is nearby.

The next step in assembling a bicycle with a chainsaw engine is the manufacture of transmission wheels and pulleys. With the help of these elements, the force created by the motor is transferred to the rear wheel.

Use wheels with an external stop the size of a music disc to create pulleys.

Do not forget about the strength and reliability of fastening parts.

Assembly of the moped continues, we mount the assembled parts:

1. We connect the front transmission unit to the engine shaft.
2. We attach the second pulley to the rear wheel hub.
3. We put a belt on the transmission units. If using a chain, use gears instead of pulleys.

Having installed the chainsaw motor on the bicycle, we proceed to the connection. We connect the working compartment of the engine to the battery and install the ignition mechanism. An integral step in assembling a moped is connecting the handle for the brake and the motor. Adjust the tension of the connecting cable so that using the handle the engine starts easily.

See » Review of semi-professional chainsaw Husqvarna 240

Chainsaw ignition for a motorcycle

Chainsaw spare parts are also used to modernize outdated or in need of repair vehicles, such as a motorcycle. To improve this vehicle, a saw ignition system is often used.

You will need:

• flywheel;
• flywheel spacer with key;
• fan;
• coil with high voltage wire;
• aluminum plate for attaching the coil;
• bolts, nuts.

Chainsaw ignition is suitable for Ant and IZH Planet motorcycles. Unlike a magneto, this ignition is reliable and durable, and is not afraid of shaking and water.

For proper assembly of a moped with your own hands, reliable service, for remodeling and designing other equipment, listen to the advice:

1. Before assembling the motorbike, make sure the optimal technical condition main part - a bicycle. Modernization will increase the load on all its parts.
2. Check the condition of the gasoline tank carefully. Fuel should not spill out, as this may cause a fire.
3. In addition to engine power, don't forget about volume and weight. The volume should not exceed 50 cm³, weight - no more than 6 kg.
4. When installing the belt, make sure that the part is held firmly on the wheels, otherwise the accuracy of the impulse transmission from the motor to the wheel will decrease.
5. Using a chainsaw motor, you can independently design other equipment: a go-kart or a tricycle. You will have to make an effort: weld a strong metal frame, prepare a working gearbox.
6. With a strong frame, gearbox, driver's seat, wheels with a diameter of at least 35 cm and a saw engine, try to construct an ATV.

How to install a motor on a bicycle? It is enough to purchase one of the many engines specifically designed for bicycles. Let's look at the most common options for installing an engine on a bicycle. Easy installation and reliable fastening allow you to install the motor on a bicycle yourself.

HOW TO PUT A MOTOR ON A BIKE: ENGINE INSTALLATION PROCEDURE

Many people wonder how to install a motor on a bicycle? The answer is simple: to do this, you just need to buy a motor specially designed for installation on a bicycle. The most common are motors that are mounted directly to the bicycle frame. You can install the engine yourself. How? Read on!

Engine installation procedure

1. First, you should install the sprocket. To do this, attach a pair of rubber spacers to the rear wheel of your bike: the first one between the spokes, the second behind the spokes. The star should be put on top of the bushing on the outer side of the wheel, and the installation of the crescent is carried out with inside. Next, all this is secured with bolts. On an already mounted star, you need to check the gap: its value should not be higher than 1.5 mm on each side. To correct the gap, you need to tighten the star in those places where it is necessary, simultaneously rotating the wheel.
2. The important point is that the sprocket should be installed with the bulges and depressions of the teeth towards the spokes. This is necessary to prevent the chain from weakening and to ensure the required distance between the rear wheel and the bicycle frame.
3. The motor should be installed according to the drawing that will be included in the kit. The throttle is mounted on the right handle. To do this, you first need to drill a hole, the diameter of which is 5 mm, 125 mm from the edge of the handle. The throttle must be installed with care. The installation of the motor switch must be carried out simultaneously with the throttle and its terminals must be connected to the corresponding wires in the engine. The clutch lever needs to be attached to the left handle.
4. The gas tank is mounted on the top tube of the bicycle frame. Next, installation must be carried out fuel filter in the tank. The ignition coil is also attached to the frame, not far from the engine. The electrical leads of the coil should be routed to the motor and switch in accordance with the color marking. There is another output intended to connect energy consumers. Most often, a bicycle headlight is connected to it.
5. The next stage is installation drive chain. It must be put on the motor sprocket and on the sprocket in the rear wheel. Now you need to install the chain tensioner and adjust it depending on the chain tension. Remember, the chain should not be overtightened. When work with the chain is completed, you will need to install protection on top.
6. Before installing the carburetor, it must be assembled. To do this, you need to remove the lid from it and lay out all the parts. The needle should be located in the center of the caliper, and a flat washer with a slot should be placed on top, so that the slots in the washer and the carburetor caliper coincide. The cable is secured by installing it in a clamping chuck and threading it through the cover and spring.
7. Before you start driving, you need to adjust the distance of the electrodes in the spark plug (from 0.4 to 0.5 mm) and the free play value in the clutch handle (from 2 to 3 mm). Next, you should prepare the oil and gasoline mixture in a separate container, and then pour it into the tank. The proportion of oil to gasoline should be 1:25 at first, and 1:20 after 500 km. Under no circumstances should you mix different types fuel in the gas tank or use pure gasoline. The gas tank cap must be tightly closed.

BICYCLE WITH MOTOR, HOMEMADE MOPED

Many people today want to ride a bicycle long distances without getting tired. This is exactly why a bicycle with a motor was invented. A homemade bicycle with a motor will allow you to move quickly, and most importantly, not get tired. However, many will wonder how to implement this idea in the shortest possible time and without unnecessary labor costs?

ENGINE

To begin with, it must be said that today there are many ready-made kits, which include an engine and other necessary equipment installed on a bicycle. This is excellent option for someone who wants to become the owner of a bicycle with a motor, but does not have the opportunity to make each necessary fastener with his own hands, or he simply does not have the time to spend hours on the Internet, choosing the appropriate engine.

But, if a person wants to do all the work himself, he will immediately face the problem of choosing the right engine for his bicycle. Most often, people try to find an engine among unnecessary household utensils. And here the most ordinary manual lawn mower is perfect. But we must not forget that the power of lawn mower engines can be completely different, and this is a key point in converting a bicycle.

For example, if you install a 1 hp motor on your bicycle, then without your help it will not be able to move a structure of such weight.

Accordingly, you won’t be able to ride uphill relaxed either, you’ll have to pedal. But if your bike is equipped with a 2 hp motor, then this will, in fact, turn it into a full-fledged moped, since you can completely forget about the pedals, even while riding downhill. There is no point in stating the obvious, and it is clear to everyone that the weight of your vehicle will increase significantly, and the more powerful engine you choose, the heavier your “pedal horse” will become.

It is not uncommon for chainsaw motors to be attached to bicycles. Here, power indicators are also very important, however, the weight and size of the engine are already coming to the fore. One example of such modernization will be discussed below.

DRIVE UNIT

The most common method of transmitting the rotational motion of the motor to the wheel is a belt drive. This method requires the manufacture of a pulley that will be connected to the motor via a belt. A fairly simple and reliable replacement for a pulley is a bicycle rim, slightly smaller in diameter than the wheel of your bike. That is, to create a homemade motorized bicycle, all you need is a motor, a pulley, a belt, some fasteners, a set of tools, patience and your hands.

BICYCLE WITH A CHAINSAW MOTOR FRIENDSHIP

Most of those reading this article have probably already asked themselves the question, what forces forced a person to come up with a bicycle with a chainsaw motor? Friendship?

The main reason lies, of course, in needs, although the realization of creative ambitions and engineering talent also played a role.

In the vastness former USSR You can often hear the saying “Why reinvent the wheel?”, and this is not just true. Every boy from an early age dreams of his first bicycle, later a moped, a motorcycle, and at the end of this journey he acquires a car.

Today there are many improved models of vehicles on the market, but not every ambitious technology lover can afford them, so they get out as best they can, using the means at hand. And if you consider that successful examples can be found at every step on the Internet, then converting a bicycle is a matter of time. So how to implement the design of a bicycle with an engine from Druzhba?

Praise high efficiency designs of motor bicycles is a thankless task, due to the fact that they are often assembled from used parts for a long time, namely: a moderately damaged bike, and a “Friendship” chainsaw unsuitable for its intended purpose. But it is worth noting that a novice designer can easily get by with this. The first thing you need to do is clearly define all the parts included in the kit of your future motor bike. For assembly, you must have the following: a bicycle with a frame, an engine from Druzhba, a transmission belt, fasteners and pulleys. The design of the bike itself will also require some fiddling:

• lubricate each movable joint;
• properly secure the pulley to the wheel so that the rotational movement from the motor is correctly transmitted to the wheels;
• choose the right place to mount the motor, as it will make the bike heavier. A trunk is best suited for this; if your bike does not have a trunk, you will have to make it manually using a welding machine;
• if the engine interferes with the seat, you will have to buy a new one or convert the old one;
• supply your vehicle headlights and stops, because safety on the road is paramount, especially at late times of the day.

If the plan to convert the bike succeeds and it is rideable, then thoughts may arise about improving the aesthetic component or implementing noise absorption. Just don’t rush to implement this, since, most likely, the reliability of this vehicle leaves much to be desired. In general, this vehicle is more of an experiment than a rational improvement of the bicycle.

INSTALLING A MOTOR WHEEL ON A BIKE: STEP-BY-STEP GUIDE

Unlike gasoline engine, there are options when installing a motor-wheel. The motor wheel can be installed either front or rear. Since the second option is still the most common, this article will consider installing a wheel motor on a bicycle at the rear.

The first difficulty that may arise during the installation process is that the wheel motor does not fit into the fork. To solve the problem, you can use a cassette with fewer sprockets. You can also try widening the rear fork a little. But not every fork is flexible.

The most problematic in this regard are cheap steel forks. Aluminum forks can be bent about a centimeter or two. However, the most the best option– this means not touching the fork, but purchasing a wheel motor of a suitable size, especially since, given the wide range of models on the market, this will not be difficult. The wheel motor wires are routed out on the left side, this is done so as not to interfere with the mechanism that switches speeds and, of course, the chains.

Let's proceed directly to the installation.

• First of all, you need to remove the wheel.
• After this, in place of the old wheel, you will need to install a motor wheel, with the stars to the right and the wires to the left.
• The next stage of assembly is installation of the entire circuit, but without rigid fixation; you just need to “bait it.” This is done in order to check the functionality of the system and roughly navigate the length of the wires, and make sure that it is enough.
• The most frequent malfunction in the motor wheel - failure of the Hall sensor. Therefore, it is necessary to protect the wheel motor from moisture as much as possible. This is done by lubricating the motor wheel with a waterproof and heat-resistant sealant, because the parts in the motor wheel also heat up from friction. However, complete sealing is impossible, therefore, you should not immerse the structure in water.
• It is also better to install the controller away from possible water splashes.
• The wiring must be connected strictly according to the diagram that comes with the motor wheel. If any points are not clear, call technical support, this will help you avoid burning controller elements or charger batteries.
• After completing the wiring, you can begin installing the chain and centering the wheel motor. If the rim has a strong runout (more than 1.5 mm), first adjust it by tensioning the spokes.
• If there are no noticeable beats in the motor wheel, you can fix it. This is done with shaped washers, which must be clearly attached to the frame. The washers will not allow the wheel motor to rotate in the fork. Then, you should again check the correct operation of the device.
• If the design of the electric bicycle includes a throttle handle, then the motor-wheel must respond to its signal by starting smoothly and quickly picking up approximately 400 rpm idle speed.
• The revolutions can be viewed on the screen of the bike computer, if, of course, it was included in the kit.
• Now the main thing is done, all that remains is reliable fixation of all components and careful insulation of the wiring.
• After checking the brakes and changing the chain, your electric bike is ready for use!