How to change the valve plate of two-stroke motorcycle

The size of air inlet hole of reed valve of two-stroke motorcycle is determined by accurate calculation. Amplification may not necessarily improve performance, but may also increase fuel consumption, or cause failures such as insufficient strength, lax closure of reed valve, air leakage, re-injection, etc., and cannot be changed casually.

The reasons of abnormal valve opening of two-stroke motorcycle are: 1, which refers to the reason of pulling shock absorber. Damper, also known as choke valve or enrichment valve, is used to enrich the mixed gas. When the cold car is not easy to start, pulling the throttle can thicken the mixture and make the engine start more smoothly.

As long as there is negative pressure in the crankcase, the reed valve will open automatically. After the mixed oil and gas is inhaled, it enters the combustion chamber for compression combustion through the rotation of the crankshaft. When the negative pressure in the crankcase increases, the reed valve will close and the crankcase will close, forming a ventilation process to prevent the carburetor from backfiring, and the motorcycle can open the valve normally.