How to make a homemade moped from a bicycle? Your own moped: how to make a bicycle with your own hands A moped from a small bicycle with your own hands.

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. A homemade moped will not be able to move 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, the engine is mounted at the junction of the pipe passing under the saddle and the front bottom pipe, 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:

We connect the front transmission unit to the engine shaft.
We attach the second pulley to the rear wheel hub.
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 the handle starts the engine easily.

See » How to make your own snowmobile and other homemade products from a Druzhba chainsaw

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Chainsaw spare parts are also used to modernize outdated or in need of repair vehicles, such as a motorcycle.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:

Before assembling the motorbike, make sure that the main part - the bicycle - is in optimal technical condition. Modernization will increase the load on all its parts.
Check the condition of the gasoline tank carefully. Fuel should not spill out, as this may cause a fire.
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.
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.
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.
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.

DIY motorbike

I'm not a fan of high-speed driving: 40-50 km/h in the vicinity of the dacha is quite fast for me. And in order to move one hundred kilograms of “my majesty”, neither exorbitant power nor the elephantine mass of the carrying “piece of iron” is needed.

Someone will advise: well, take a fifty-kopeck scooter!

Firstly, the “stools” are a bit expensive. Secondly, in a village where there is a dacha, this is “equipment until the first breakdown” - it’s unlikely that 300 km from the city I can easily find an imported spare part if necessary.

Thirdly, the scooter weighs a lot: how can you transport it to your dacha in a passenger car? Drive under your own power? Not funny! After 300 km of travel I will be left without arms, without legs, without a fifth point...

Two “idlers” who have become related are going to the dacha.

When I was thinking about this, I came across the article “We’re riding standing up” in “Moto” No. 9, 2005. The author told how he adapted a “cheap” motor to a scooter. I was hooked and I rushed to the bike market.

But the trouble is, the sellers unanimously claimed that they were not releasing the “cheap” product now (maybe they were lying?). I don’t know how it would have ended, but I remembered “Mole”. The one that “lives” in my dacha and cultivates the soil for only two days a year: one in May, the second in September. Its 60 cc two-stroke is twice as powerful as the “cheap” one - 2.6 “horses” versus 1.3. Assembled with gas tank, muffler, manual starter, air filter and gearbox. And I decided to adapt it to another “loafer” - a folding bicycle that had been collecting dust on the mezzanine for three years.

Gas lever (indicated by arrow).

I made a shelf from a 5mm duralumin sheet and installed it instead of the rear trunk. It is held in a vertical plane by two racks from an old bicycle. In the longitudinal one there is a hole with which it is put on the pipe; a saddle is fixed in the hole. And the lateral stability of the structure is guaranteed by the slope on the right side. The motor was screwed onto this fairly rigid structure with four bolts.

On the left of the steering wheel: 1 - clutch release lever; 2 - lock lever; 3 - ignition switch button.

The drive to the rear wheel was made by a belt, with a tension roller from the timing belt of the VAZ-V8. The drive pulley was left standard, and the driven one matched the gear ratio from the MB walk-behind tractor. It is aluminum, two-strand. On a lathe I cut off the extra stream - the one that is wider. How do you attach the pulley to the wheel? I found another pulley (the inclination of the side surfaces of most pulleys corresponds to the angle of inclination of the spokes), and made cuts in it with a “grinder” that coincided with the crosshairs of the spokes. I installed it exactly in the center of the wheel using a special bushing. I drilled holes in it and bolted it to the spokes through large washers. And I already screwed the driven pulley to it with three screws. The gear ratio turned out to be extremely successful. And one more thing: the drive pulley is double, and next to the engine on the shelf there is enough space for a small generator. Do you catch the thread?

Clutch mechanism: 1 - cable; 2 - plate; 3 - bolts - guide plates; 4 - roller; 5 - springs.

The Mole does not have a clutch mechanism. Why not transfer this function to a belt drive? To do this, the roller tensioning the belt was not fixed rigidly - it was constantly pressed by a spring. If you squeeze it and move the roller away, the belt slips. Here's your clutch! The clutch release lever is homemade. The free play of the plate with the roller is as much as 7 cm (this is with a margin - after all, the belt stretches out over time), and for motorcycle clutch levers it is no more than 2 cm. What happened can be seen in the photo. The disadvantage of the design is that you have to directly, without a reinforcing arm, “fight” with the springs of the tension roller. But this can be tolerated - my car does not have a gearbox, so I have to operate the clutch lever very rarely - only during starts and stops. The lever in the clamped position secures a small locking lever. It helps out when you need to disengage the clutch for a long time, for example, when riding “like a bicycle.” Instead of a clutch cable, I inserted a thin steel wire lubricated with lithol into the braid. The braid does not have sharp bends, so the wire moves easily in it. The main advantage of such a replacement is that the wire is much more reliable than the cable that is in short supply in the village.

The main component is under the baseball cap.

Front and rear brakes are regular bicycle brakes. The rest of the controls on the steering wheel are standard from the “Mole”: on the left is the “jammer”, on the right under the thumb is the gas lever.

Conducted tests in December. Starting the motor with a cord. I started using the pedals. Two or three turns - and you can forget about them.

By the way, the forced cooling fan of the “Mole” ensures that the motor does not overheat at low speed. I asked a car driver I knew to drive in sync with me to record the speed. It turned out that the “maximum speed” is over 60 km/h. But such a speed seemed dangerous to me - it was a bicycle after all. And at 40 km/h it’s pure pleasure! For this engine, “forty” is a walking mode. Any rise is a trifle for him.

This is how the driven pulley is attached to the wheel: 1 - driven pulley; 2 - machined pulley; 3 - bolts with large washers.

What did I get? What I wanted. In the trunk of my Zhiguli, it’s easy to put an individual folding vehicle weighing 32 kg (bicycle - 20, motor - 12), capable of moving “my majesty” at a speed of 60 km/h and a little faster. Assembly and disassembly takes five to ten minutes. Gasoline consumption is no more than 2-2.5 liters per 100 km. There is nothing to break in my design. In stock it is enough to keep a belt, one or two meters of steel wire and a tension roller from the “eight”! And as a last resort, there are pedals.

This is how the driven pulley is attached to the wheel: 1 - driven pulley; 2 - machined pulley; 3 - bolts with large washers.

Common data:

dry weight - 32 kg,
length - 1830 mm,
height - 1100 mm,
saddle height - 850-950 mm,
width - 600 mm,
base - 1230 mm,
ground clearance - 180 mm,
gas tank volume - 1.8 l,
maximum speed is more than 60 km/h.

Engine- “Mole”, displacement - 60 cm3, power - 2.6 hp, carburetor - K60V.

Transmission:
homemade belt drive, belt - 1400 mm,
driving pulley - standard 60 mm, outer diameter of driven pulley - 255 mm
(optimal for wheel diameter 600 mm). Chassis:
folding bike "Impulse".

Tires:
front and rear - 47-507.

Brakes:
regular bicycle ones. Electrical equipment: not yet available.

If your household has an old bicycle, preferably made in the USSR, a broken chainsaw with a “living” motor, a couple of pipes - all this rubbish can be put to good use. How? It’s very simple to make a bicycle with a chainsaw motor with your own hands. With a little effort, you can get a completely normal vehicle - in all respects it will be inferior to a car, but it will be able to take you from point A to point B over a short distance, and the gasoline consumption will be simply miserable.

Making a motorbike with your own hands

So, how to make a moped from a chainsaw with your own hands? To do this, you do not need to have a higher technical education and have a mobile workshop at hand - just the required minimum of tools, a working motor from a chainsaw of almost any brand and a bicycle frame, preferably made of metal tubes, to withstand the load from the engine.

Motor selection

There is nothing complicated about how to make a bicycle with a chainsaw motor. But you need to understand that the motor will not be suitable for a light chainsaw that is used for small jobs - its power must be at least 2 hp. or 1.5 kW. But as for the volume, the situation here is exactly the opposite - the volume should not exceed 50 cm3, otherwise it will violate the provisions of the Vienna Convention. Otherwise, such a vehicle does not require a license or registration, since this vehicle is defined as a “bicycle with an outboard engine.”

Frame equipment

A homemade moped from a chainsaw is made from a bicycle in any, even the most “dead” condition - the main thing is that there is a whole frame. The engine from a chainsaw is installed on a bicycle at the junction of the lower and seat tube - this is the optimal location method. A gasoline tank is screwed next to it, and a battery is installed above the engine, on the top pipe. You need to install the chainsaw engine so that it is fastened firmly and securely - the motor is subject to vibration and if it is loosely secured, it will fall.

If you don’t have a frame from a finished bicycle, you can easily weld it - for this you need several pipes and a welding machine. It’s even better - such a DIY chainsaw motorbike will be more durable and reliable, and a self-welded frame will allow you to position the motor as close as possible to the drive wheel.

Transmission

Simply installing a chainsaw motor on a bicycle is not enough - you need to make sure that the torque from the motor is transmitted to the wheels. For this, pulleys or a chain mechanism are used:

Pulley system. In this embodiment, the engine from a chainsaw on a bicycle will transmit torque through a belt. This system is simpler - it uses factory or homemade pulleys, one on the engine shaft, the second on the rear wheel hub, as well as a tension belt. The downside is that the belt stretches faster than the chain and is less durable, although V-belts are not inferior to chains in durability.
Chain transmission. Here you can use a rear sprocket and install a gear on the motor shaft. The transmission of torque occurs through a chain - it is more durable and resistant to stress, but requires regular maintenance. Choose for yourself how to make a bicycle with a chainsaw motor, or rather, which transmission to install on it.

Motor connection

A DIY motor scooter made from a chainsaw will not work if the engine is not connected correctly. To do this, you need to connect the battery to the engine ignition unit, as well as to the brake handle. Position the connecting cable so that it can be easily wound using the handle. The last step will be to install an exhaust pipe - you don’t have to install it, but in this case the chainsaw scooter will “delight” with the exhaust right in your face.

As you can see, there is nothing complicated about how to install a chainsaw engine on a bicycle - here you only need to put in a little effort and have the necessary minimum of spare parts and assemblies. But such a self-propelled mechanism will go a little faster than a regular bicycle. But homemade go-karts made from a chainsaw are on a completely different level. With the right approach, you can organize real races, so we’ll look below at how to make a go-kart from a chainsaw with your own hands.

Homemade go-kart with a chainsaw engine

The main difference between a chainsaw go-kart and a motorbike is that it is designed for higher speeds and therefore has a more rigid four-wheel design. Therefore, the most important element is not the engine, but the frame - it will have to be made by hand, and not just bolted together, but welded.

Body

It is recommended to use a square or round pipe for the frame - it has higher bending resistance and rigidity than a regular profile or angle. In general, you need to use several sizes: a thick pipe with a diameter of 25 mm for the chassis beams, 20 mm round timber for the frame and engine support platform, 15-20 mm pipe for the seat and other components.
Draw a drawing of your future kart, take careful measurements, and only then start making a kart with a chainsaw engine. There are tons of different templates online. Recommended parameters – from 1300 to 1800 mm long, from 760 to 1000 mm wide. The center distance is approximately ¾ of the total length of the kart.
Proceed with assembly. The structure should not be purely welded - for example, the rear axle should be movable and rotate freely, so it will have to be secured through a support bracket. Otherwise, the chainsaw kart will turn very poorly and have insufficient controllability. You don’t have to bother and buy ready-made support-bearing units - it will be easier and more reliable.
Making a seat. This is also not as simple as it seems - when passing a sharp turn, the driver can easily fall out of the seat. You can use a homemade seat made of metal or plywood, as long as it provides a tight fit.

Motor and transmission

Choosing a motor is a simple matter. The more powerful the engine, the faster the homemade chainsaw go-kart will go. Power 2-3 hp. it will be enough to accelerate to 20-30 km/h - nothing more is required from such equipment. By the way, you can make a go-kart from a chainsaw, or from a trimmer.

Before installing the motor, prepare a platform at the rear of the frame on which the motor will be installed.
Drill holes in the motor casing for fasteners that will coincide with the holes on the platform.
The motor pulley must coincide on the axis with the working pulley.
The sprocket can be used from the chainsaw itself, but you will have to sharpen it a little.
A chain is used for the transmission, but in some cases it is possible to use a pulley with a V-belt - it is cheaper, and in many respects it is not inferior to a chain.
Place a gas tank next to the engine - a plastic or metal container with a volume of 2-3 liters.

Steering and braking system

The pedal assembly is easy to make. Cut out pedal models from a metal sheet; for the feet, use an 8-10 mm metal pond. Lay the control cables so that they do not interfere with your feet and lie flat - otherwise, the cable may break.
The brake must be a foot brake. You can, of course, make it manually, but this will only complicate the design. The brake disc must be attached directly to the frame, and the brake caliper must be attached to the wheel. In a homemade version of a go-kart with a chainsaw engine, you can install brakes only on the rear drive wheels, but if you are doing a “high-speed” version, install brakes on the front axle as well.
Steering. One of the most difficult aspects is making the front wheels turn. Here you will have to use swivel brackets, to which you need to attach the steering rack. The rack itself is connected to a thick rod, onto the top of which the steering wheel itself is placed.

Chassis

For the chassis, you can use any wheels you have on hand. The front ones can be taken with a smaller diameter, and the rear ones with a larger diameter. But at the same time, estimate the power of the motor - if the motor is weak, then there simply won’t be enough torque. So here we will have to find out everything experimentally. As a rule, the wheel diameter does not exceed 250-400 mm.

ATV from a chainsaw

Another option for motorcycles that you can make with your own hands is a small ATV for a child or teenager. In fact, the technology used to make a homemade children's ATV from a chainsaw is practically no different from that used to create a go-kart. But there are several features:

The DIY ATV frame made from a chainsaw has a slightly different design - it is more complex, tall and massive.
For the power unit, the most powerful motor possible is used. Usually, motorcycle engines are installed for such equipment, but you can make a homemade children's ATV from a chainsaw - you only need a small modification in the form of a gearbox or intermediate shaft to increase traction and torque.
Due to the peculiarities of the seating, a chair from a moped or motorcycle is installed - it will be more comfortable than a chair with a backrest, like in a go-kart.
A children's ATV made from a chainsaw with their own hands has better cross-country ability than a go-kart, so it uses wheels of increased diameter. Their diameter should be at least 350-500 mm, preferably with a developed tread. Otherwise, it will not be an ATV, but the same go-kart.
If possible, you can install shock absorbers in the suspension - this way you will achieve a smoother and softer ride.

In all other respects, the design of the children's ATV repeats the technological solutions used to make go-karts.

A DIY chainsaw motorcycle is a solution for those men who don’t want to spend money on a car and its subsequent maintenance and who don’t like pedaling a bicycle. In this case, an excellent way out of the situation would be a moped from a chainsaw and a bicycle, which you can assemble with your own hands in the garage, having purchased some of the necessary, missing parts and spare parts. The remodeling process itself is not particularly difficult.

Before starting assembly or if you have questions, you can always refer to the drawings and numerous video reviews available on the Internet.

The principle of a homemade moped from a chainsaw

As the basis for a future moped, you can choose an old bicycle that you want to breathe new life into. You will also need a chainsaw to install the motor on the bike. Thus, you will get a motorbike that you can upgrade: repaint it, install wider wheels, change the handlebars and do other procedures that will make your homemade bike more like a motorcycle.

Choosing a chainsaw for a bicycle

The most important factor by which you need to choose a chainsaw for assembling a moped is the power of the power unit. The most suitable power is 2 horsepower, since less power will not be enough to start the bike. The engine volume should be no more than 50 cm3. Also, experienced drivers of homemade mopeds recommend choosing engines from old mopeds or lawn mowers.

What does it take to make a moped from a chainsaw and a bike?

For the most part, converting a bicycle into a moped with your own hands by attaching a chainsaw motor to it does not require any special skills of a mechanic or engineer. If you are new to this business, then numerous drawings of a moped made from a chainsaw, as well as educational video reviews, will help you. Also, not every man has everything he needs in his garage to make a motorbike from a chainsaw with his own hands. Therefore, before assembly, it is recommended to study the list of necessary parts, fasteners and spare parts and buy the missing elements.

In specialty stores you can find entire kits that include a ready-to-install engine, fasteners and other parts that are necessary to transform a bicycle into a moped. This kit will greatly facilitate the process of assembling a motorcycle, since there is no need to select an engine, suitable power, fasteners, battery, transmission belt, cable, etc.

Speaking of tools, you will really need all the popular types of auto mechanic kit components: screwdrivers, pliers, wrenches, wire cutters, etc.

Assembly instructions and drawings of a homemade moped

Firstly, we will first look at the simplest and most affordable option for how to make a moped from a chainsaw from the photo above. During assembly, the question often arises of how to install a chainsaw motor on a bicycle. It is important that it is securely attached and does not move while riding. For this type of homemade motorcycle, you need to secure the following parts with clamps in certain places:

the battery is installed on the top tube;
the chainsaw bicycle motor itself is mounted at the intersection of the lower front and seat tubes;
fuel tank - near the engine.

The next step in the conversion is to create and install the pulleys on the bike. They are needed so that engine operation provokes rotation of the rear wheel. Typically, pulleys use external barrier wheels, which are about the size of CDs.

When selecting wheels, take into account the strength and reliability of both the material itself and the fasteners. To install the pulleys, the front wheel is attached to the motor shaft, and the second pulley is attached to the rear wheel hub. Next you need to put the belt on the pulleys. Sometimes men use a chain instead of a belt. In this case, the pulleys are replaced with a chain, and the principle of its installation is no different.

All that's left to do is connect the engine. First, the motor is connected to the battery, and then the ignition is assembled. To do this, you need to install the brake lever on the steering wheel and connect it with a cable to the engine.

If we talk about a more complex option, then as a result you will get a homemade vehicle that is most similar to a real motorcycle. The main differences from the previous design are a more reliable and durable frame, wider wheels that can be removed from an old moped, the presence of shock absorption and the installation of an engine from a chainsaw.

The most convenient place for the engine will be a separate platform welded at the bottom of the frame. You can also place a fuel tank there. An exhaust pipe is also attached to the engine. As for the battery, owners of homemade mopeds recommend placing it closer to the steering wheel. The next step will also be the transmission and connecting the engine. You can watch all the nuances of how to properly make a motorcycle from a chainsaw with your own hands in the video.

Many users insist on paying attention to how the belt is held on the wheels. The degree of its fastening affects the transmission of force from the engine, and, consequently, the driving process. The chain is a more reliable and durable part, but do not forget that when using a chain on a homemade moped, gears are used instead of pulleys.

The engine that you removed from the chainsaw should be in full working order. Otherwise, spend a little more time assembling the moped yourself and rebuilding the engine. Try to fix failed parts or completely replace them with new ones.