If you set out to improve your moped or scooter, carefully consider all the consequences of such an upgrade. Basically, the motor of the moped is subjected to refinement in order to improve the speed qualities of the technical device. Forcing the engine is an occupation that requires certain qualifications, dexterity and skills.
It is necessary
- - a set of locksmith tools;
- - sports variator.
Instructions
Step 1
Determine your financial capabilities to upgrade the moped propulsion system. Making structural changes to the engine can cost you several thousand rubles or more, depending on the cost of the parts that you will additionally install on the moped.
Step 2
With minimal engine modification, remove the maximum speed limiter and replace the variator weights. You can buy weights at a motorcycle parts store, or you can grind them yourself.
Step 3
Additionally, bore the piston cylinder to 44 mm. Entrust this to a professional. Increasing the volume of the cylinder will increase the speed of the moped up to 60 km / h. In addition to increasing speed characteristics, such a design change improves the dynamics of acceleration.
Step 4
If financially possible, replace the engine piston group with a similar one, but with a large volume, up to 70 cc. see Equip the updated engine with a sports variator with a higher gear ratio. The travel speed will increase to 65-70 km / h.
Step 5
For a more perfect modernization of the moped, increase the piston group to 80 cc. cm and bore the engine cylinder under the piston with a size of 50 mm. Additionally, replace the cylinder head with a new one equipped with enlarged valves. Modify the carburetor as well by increasing the jet. A moped engine forced in this way will be able to reach speeds of up to 80 km / h, however, the wear of parts will increase, which will shorten the engine life.
