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Bicycle with engine 208cc



Hello everyone, in this instruction we will consider an example of installing a gasoline engine on bike. The problem is homemade in that the motor was chosen very powerful, according to the author, it is capable of delivering 80-90 km / h of speed, which is a lot for a bicycle, you will simply be blown away by an oncoming flow from such a speed. The engine is used here, it is a motor for the manufacture of karts and other similar homemade products. But if you replace it with a weaker one, for example, an engine from a petrol brush, you get a pretty good moped. If you are interested in the project, I propose to study it in more detail.

Materials and tools used by the author:

Material List:
- ;
- a piece of sheet steel for mounting the motor;
- experimental bike;
- chain transmission and other details;
- throttle handle;
- foam rubber and other for sitting;
- bolts, nuts and more.

Tool List:
- welding machine;
- grinder;
- drill;
- tape measure, marker, etc.

Homemade manufacturing process:

Step one. Engine installation
To begin with, we will make engine mounts, here the author used thick sheet steel. We drill 4 holes and cut out slot holes with a grinder. This is done so that the engine can be moved, thereby pulling the chain. The bracket made is carefully welded to the frame of the bicycle, and it is advisable to strengthen it with additional plates by welding to the frame.















Step Two Chain drive
Next, we establish a chain gear, the author transfers the torque to the axis of the bicycle, where the pedals are installed. To do this, remove the connecting rod and install a driven sprocket on it, it is large in diameter, and the drive sprocket has very small dimensions. On the axis of the engine is a centrifugal clutch.

The driven sprocket is mounted on a piece of the axis, which is then welded to the axis of the bicycle. The author performed the centering of the axis by eye.
As a result, it remains to install the chain, cutting it to the desired length and pulling.













Step Three Gas handle
Install the throttle, connect the cable to the throttle of the carburetor.It is highly advisable to also install reliable brakes for such a bike rather than a bicycle.





Step Four Seat
The author took off the regular seat, he will now sit on the trunk, with an engine of 200 cubic meters between the legs. The seat is made of a piece of foam, which on the glue was covered with a skin substitute. The seat itself is glued to the trunk with glue.






That's all, the killer technique is ready, we start the engine and hit the road, on our last journey ... However, if everything is in order, then carefully riding such a motorcycle at a speed of no more than 30-40 km / h is quite possible. The author claims that the car travels at a speed of 80-90 km / h, but how he checked it remains a mystery, given that his seat is glued, and his legs hang out above the ground, since he did not make steps.

The project is over, I hope you have found useful ideas and inspiration. Good luck and creative inspiration, do not forget to share your ideas with us.






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6 comments
boris.
Shame! Illiterate design!
Well, why ?! You can clearly see in the last two photos
Then you need protection from overheating and from fumes! xaxa
Show this fool to the cyclist with his clunker the good old engine called the Irtysh, which was produced under the USSR in Siberia. And do not hell to show us a fool house. Better start tying "IRTISH". This is the engine. not this clunker.
Author
there is an exhaust side
Guest sweeper
Well, why ?! In the last two photos you can clearly see it - it blows in the eggs.
It is a pity that the photo is "one-sided" (on the one hand), it is not visible in which part of the body the exhaust is! smile

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