A bicycle with a motor from a Druzhba chainsaw. How to make a bicycle with a chainsaw motor 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.

Homemade children's ATV from a chainsaw

The last homemade product that we will look at will be dedicated to ATVs. In fact, to assemble an ATV you need similar materials as for a go-kart or tricycle:

engine from an old powerful and working chainsaw;
gearbox – increases engine thrust and takes over its operating speed;
ATV frame – it should be stronger and more stable;
the driver's seat is good if you have an old moped seat: a teenager will be more comfortable in it than in a bulky car seat;
wheels with rough tread, diameter of at least 34-35 cm each. This will improve the cross-country ability of the ATV and make it similar to an SUV.

If desired, the prefabricated structure of the ATV can be improved to perfection with shock absorbers: the maneuverability of the ATV will increase, and the operating stroke will become smoother.

Homemade vehicles are cheap, but not always reliable. They can only be used in strict compliance with all safety regulations.

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Engine

The key component of a homemade snowmobile is the engine. Unlike other parts, such as a bus or chain, this unit must function without the slightest glitch. Otherwise, the car will remain motionless or stall at the wrong moment.

Therefore, the issue of choosing and installing an engine must be treated with full responsibility. If you want to choose an engine from an imported chainsaw, it is recommended to choose the “Calm” model.

The next, no less important, unit of the system is the gearbox. It also plays a key role in the trouble-free operation of the snowmobile.

Asterisks

The right tip has a special groove for mounting chain sprockets. We are talking about a caterpillar shaft sprocket, which is secured with a nut. To implement this action, an appropriate thread is made on the tip.

The shaft tip has similar dimensions, and its fastening is carried out in exactly the same way as the shaft sprockets.

The sprocket with the largest number of teeth is installed in the first stage of the transmission. The Ural power plant has up to 38 teeth.

Steering

To produce a functional and comfortable self-propelled vehicle that can be easily controlled by an inexperienced driver, you can use any available steering wheel, including a bicycle one. In this situation, you will need to provide manual control of the speed, which requires some effort. You can avoid wasting time by using a steering wheel from a moped or scooter, which is already equipped with a power control unit. In this case, the design will become as comfortable and reliable as possible.

Assembly principle

The first thing that attention is paid to is the design of the frame, which is made of pipe and on which the power unit will subsequently be placed. Then the tank, headlight and wheels are installed

If you are using old parts, you must first clean them of rust. This is especially true for seams. After the initial stage is completed, the frame is covered with several layers of paint. Be sure to dry each layer thoroughly to avoid corrosion. As a recommendation, it is best to use spray paint to avoid smudges. You can paint not only the frame, but also the wheels, after sealing the rims with masking tape.

Moped from chainsaw Druzhba-4

After all the parts are dry, you can begin installing the chainsaw engine. Make sure that the motor is well installed and secured. Without a cooling system, such a bicycle motor will overheat after 30 minutes of operation, so it is advisable to make a water cooling system. The homemade device looks like this. 2 flexible tubes are connected to the plastic bottle. One is attached in the upper part for air intake, the other in the lower part and through it, using a drip system, water flows to the engine cylinder head. The result is simple homemade drip irrigation and effective cooling.

As an additional comfort for the driver, you can install fenders, since clods of dirt and water can get on the engine. The resulting unit is capable of speeds of up to 60 km/h.

Below is an approximate drawing that can be used to convert a bicycle into a moped.

Sawmill

One of the most common homemade products is considered a sawmill. Many developers often make beams with such a tool. Holding the saw in your hands and at the same time accurately controlling the cut along the entire length is quite difficult, especially if the log is more than four meters long.

Craftsmen have come up with a very simple solution to this problem. The chainsaw is rigidly fixed on a steel or iron frame, which can move along the entire front.

You can also use the mount to fix the chainsaw on a guide, which is height-adjustable.

In such a sawmill, the log lies stable and can be sawed along its entire length without any effort, and the seams are even. And if you equip such a homemade sawmill with four lifting screws, this will also allow you to control the thickness of the future beam. Such a sawmill can easily cut boards, but in this case the waste will increase, since the chainsaw chain is thicker.

Chainsaw moped

At first glance, a moped and a saw are absolutely incompatible things that cannot interact in any way. But this is wrong, and numerous craftsmen have proven that making a moped from a chainsaw is quite possible. But there is little to be done; this unit also drives and transports its owner. The speed, of course, is not very fast, but it’s still better than walking. You can use a bicycle as the basis for the design or do everything completely yourself. The bike motor amazes with its endurance, but this is what everyone expects from time-tested saws.

The older generation is familiar with self-propelled structures in the form of a bicycle with a motor. It is difficult to classify this equipment as mopeds, but they no longer fall into the category of bicycles. A kind of “middle link”. A significant advantage of such a unit is low fuel consumption and the ability to drive without a license. You can’t ride it on public roads, but you can drive along rural streets and alleys.

The frame has undergone changes, which have been extended to accommodate bicycle or other wheels, depending on what is available. A fuel tank is also attached, a motorcycle seat is installed, and a headlight is attached for driving in the evening. A water system has been developed to cool the bicycle motor. This was done to prevent the engine from overheating quickly and losing power.

Owner reviews

Kolyan:

“I bought the old saw Druzhba as scrap metal. I replaced the ignition, seals, rings, carburetor - and reassembled the engine. The wheels for the bike were taken from an old scooter, and the bicycle frame was slightly overcooked. I decided not to install belts, but a chain drive. Sprockets 9 and 41 teeth. I didn’t draw any drawings, so everything somehow worked out by eye. I installed a gas tank from an old moped. The wheels, of course, are of small diameter, so the landing is low, but it pulls normally.

Advantages: cheap, practical;

Disadvantages: not very powerful, low landing.”

Biker:

“It will be useful to install a flashlight and dimensions on a homemade moped, because the speed is decent. I made a curtain for a regular bicycle light, so you don’t blind oncoming people and illuminate the road more for yourself.”

On our website you can also read descriptions and reviews of chainsaws (cordless and petrol) from the following brands: Bosch, Oleo Mak, Eurolux, Taiga, Interskol, Hitachi, Eco, Lesnik, Poulan, Daewoo, Hammer, Soyuz, Sturm, Parma, Zubr, Champion, Huter, Echo, Patriot, Ural, Karcher, Carver, Husqvarna, Makita, Druzhba, Kruger, Caliber, Stihl, as well as give feedback on chainsaws of these brands if you have something to say about the build quality and experience in operating specific models of chain saws of these brands, write your review in the comments, it will be very useful for our readers.

Also on the pages of our blog you can read articles about:

Read also: Catalog of drilling machines made in the USSR

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

Useful tips

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.

Don't throw away spare parts from old equipment. You can breathe a second life into them and create a convenient means of transportation.

Do-it-yourself motor scooter from a chainsaw

An equally famous homemade product that the domestic “Kulibins” learned to make. To recreate it we will need:

a scooter designed to support the weight of the person who will operate it. It is desirable that it initially have a manual braking system. The pneumatic wheelbase of the scooter must be durable;
a chainsaw from which the engine is removed - medium and high-power models are suitable.

The process of assembling a scooter looks simplified compared to previous homemade products:

First, remove the motor base and secure it to the back of the scooter frame. Make sure that the motor and wheel sprockets match;
we attach a manual accelerator with ignition of the chain saw - this way the operator can control the moving process;
If necessary, the scooter is equipped with a brake pedal, but in most cases, the lever for manual control of the scooter is enough for its full operation.
testing a scooter made from a chainsaw - if it is working properly, the new motorized device is ready and can be used.

Let's start repairing the Chinese miracle of technology

The Alpha 72cc moped is one of the most famous representatives among Chinese motorcycles. This moped is perfect for use both in rural areas and on city roads. A durable iron frame, complete absence of plastic parts, large diameter wheels - simply created for domestic roads, the quality of which is far from European level. If you ride often, the rather high seating position of the ALPHA moped makes it possible to overcome low obstacles. A big advantage when choosing a moped is its low price, which makes the purchase quite affordable. This would be a good choice for a beginner.

Benefits of using a chainsaw to create a moped

Personally assembling a bicycle with a motor from a household chainsaw gives the manufacturer a number of important advantages.

These include:

the ability to create a unit that has the technical characteristics needed for operation in specific conditions;
low cost - a homemade motor scooter from a chainsaw can be built using almost improvised materials. At the same time, the device will show fairly high efficiency and have good maneuverability on rough terrain;
modest fuel consumption - the engine from a household chainsaw consumes a relatively small amount of fuel. Thus, the gasoline consumption of a homemade product assembled on the basis of an internal combustion engine of a gasoline saw will be much lower than that of store-bought motorbikes;
ease of operation and low maintenance – homemade mopeds made from a chainsaw are quite easy to use. All that is needed to service them is the use of high-quality gasoline and motor oil, as well as timely replacement of gearbox lubricant.

A gasoline scooter made from a chainsaw is quite easy to repair. Provided the correct sequence during assembly, the manufacturer of the unit has free access to frequently replaced parts of the moped, which saves time when repairing it.

Benefits of the product

The essence of the benefit of a homemade design is tangible savings in money. A good factory snowmobile will cost a considerable amount of money. In addition, the situation often occurs that having bought a snowmobile, ridden it for a short time, then it sits idle and is used extremely rarely. Lack of free time, banal dependence on the availability of sufficient snow.

A homemade snowmobile can be assembled from existing scrap metal and unnecessary spare parts, spending a little money. The engine of the Druzhba chainsaw is economical and is not picky about the oil and fuel used. In the future, if the snowmobile is no longer needed, it will not be such a shame to give it away, sell it, or even just throw it away.

Having free time and an interest in engineering work, a homemade snowmobile can be reconstructed, modified, or made changes. It's like a children's construction set, only for adults.

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.

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 engine starts easily using the handle.

What details are needed?

In order to assemble the motorbike structure you will need the following materials:

chainsaw motor
bicycle wheels 2 pcs.
tank, headlight, seat from a motorcycle or other suitable unit
spray paint cans 4 pcs. and masking tape
metal pipe 16-20 mm.
cable
chain
cycling stars
front and rear bicycle forks
axis
hose
plastic bottle
IV
steering wheel
throttle handle

It should be noted that on the modern market there are ready-made kits that include all the necessary parts for making homemade products. But the question here is price. If you want to save money and use unnecessary parts lying around in the barn, you will have to try on your own.

DIY motorbike from a chainsaw

Not every happy owner of a bicycle is delighted with the need to pedal and waste his energy. A motorized bicycle is more convenient and less expensive in terms of power.

Making a bicycle with a chainsaw motor with your own hands is not as difficult as it seems at first glance. For this you will need:

bike;
a saw with a gas engine power of at least 2000 W - this indicator will determine whether it can start moving. As practice shows, the engine power is 2 hp. It is enough for a motorbike to reach a speed of up to 40 km/h;
reservoir for the future fuel tank;
cable from an old bicycle;
a handle to allow you to adjust the throttle;
bolt ties, nuts and other small consumables for creating fasteners;
connecting elements for creating a connection between the wheels and the engine.

we assemble the drive shaft - remove the rear wheel tire and install a tire with a diameter of up to 2.5 cm. This equipment will help to adjust the engine speed, and like a gearbox, reduce the number of revolutions;
We use electric welding to weld a stand from the corners - it will help install the engine from the chainsaw;
alteration of the clutch - you can use a centrifugal one from a factory saw, connecting it to the wheel;
we adapt the gas tank - it can be located next to the engine, or on the frame;
we attach the wire from the engine ignition system to one of the bicycle handles;
attach a cable from the carburetor to the gas handle so that throttle control is simple and quick;
We equip the motorbike with protective equipment: mirrors, a flashlight, and proceed to testing a homemade bicycle from a chainsaw.

As you can see, installing a chainsaw motor on a bicycle is not so difficult.

Motoblock drawings

Walk-behind tractor - small-sized tractor

Motoblock drawings

A walk-behind tractor is a very useful device that greatly facilitates physical labor during agricultural work, and also significantly saves time. Buying a domestic or imported walk-behind tractor in an online store or in agricultural tool departments is currently not difficult. (See “Reviews Motoblocks”). But some people prefer to construct the unit with their own hands. And the point here is not always about saving.

For many, designing a household assistant capable of mechanizing manual labor is an opportunity to show ingenuity and technical literacy, and at the same time, to find a use for elements and spare parts left over from some scrapped vehicle.

Having studied the materials of the World Wide Web, you can find many interesting and useful articles about the independent design of walk-behind tractors. Craftsmen use a variety of materials for their designs. In this case, the gasoline engine of the unit can be an engine from a chainsaw, scooter or other technical devices.

The drawings of the walk-behind tractor presented in this note will give only some idea of the variety of designs created by the hands of homemade craftsmen. Detailed information describing the design of these walk-behind tractors, as well as many others, can be found on the website masteraero.ru. It is possible that these drawings of a walk-behind tractor will give someone an idea of how this unit can be built using available means and capabilities.

Homemade walk-behind tractor. Author A. Narvatov, Volsk, Saratov region.

Motoblock device

The walk-behind tractor is considered a type of small-sized tractor. Thanks to the ability to use a variety of mounted and trailed equipment, this is a universal unit that helps solve many problems when cultivating the soil and in other agricultural work.

The main components of a walk-behind tractor are the engine, transmission, control system, aggregation system, and chassis.

Motoblock "Beetle". Author A. Klimenko, p. Chernigovka, Primorsky Krai

Walk-behind tractor engine

The engine of a modern walk-behind tractor is equipped with automatic speed controllers, which make the operator’s work more convenient. Engines can be two-stroke or four-stroke, with a power range from 1 to 10 horsepower.

Walk-behind tractor transmission

Transmission units can have various technical solutions:

The traditional tractor transmission is gear. Characterized by the presence of only gears, as a rule, it has steps and reverse. The location of the engine crankshaft is horizontal, running perpendicular to the axis of the drive wheels. Motoblocks with gear transmission are mainly equipped with a power take-off shaft. Gear transmission is used on heavy walk-behind tractors.
On light units, a gear-worm transmission is installed, consisting of gear and worm gearboxes. The engine crankshaft is positioned vertically.
The belt-tooth-chain drive is characterized by driving the engine into rotation of the shaft using a belt drive, which also performs the clutch function.
Less commonly used is a hydrostatic transmission, which operates due to the hydrostatic pressure of the liquid.

Motoblock "Beetle". Author Author A. Klimenko, p. Chernigovka, Primorsky Krai

Walk-behind tractor control system

The principle of operation of the walk-behind tractor is its mechanical movement by the operator. From here, all controls of the unit are actuated manually. For convenience, engine and transmission controls are located on the steering bars, with the help of which the operator directs the machine. Light walk-behind tractors are not equipped with brakes, but on heavy ones, the brake is installed on the right bar.

Walk-behind tractor aggregation system

The aggregation system is the ability of a walk-behind tractor to work with attachments. To use active attachments, the walk-behind tractor must be equipped with a power take-off system.