How to Adjust the Throttle Clearance of Feizhi 250

Adjust the valve clearance in time, then loosen the fixing screw on the valve adjusting screw and hold the adjusting screw with your fingers. There can be no gap between up and down, just swing left and right with a gap. Generally should not be too small. If it's too small, it's not easy to do it. If it is too big, it will make noise. Need air intake is a little bigger than air exhaust, feel it with your hands. If you don't understand, you'd better not move.

Accurate valve clearance of the engine can ensure the normal power output of the engine. Excessive valve clearance will cause noise in the engine, and insufficient intake and exhaust of the engine will lead to power decline because the valves cannot be fully opened; However, the valve is too small, which directly affects the vehicle's failure to start normally and the power is insufficient after starting. This is because the valve can not be completely closed, which reduces the compression ratio of the cylinder, can not completely burn out the mixer in the cylinder, and at the same time, the fuel consumption will increase for no reason. The engine has a crisp noise, which is probably the sound of excessive valve clearance. Please don't adjust yourself. It is recommended to find professional maintenance personnel to adjust.