How to adjust the nose valve of Lifan tricycle 175?

This kind of tricycle generally uses more mandrels, and the valve adjustment should be carried out when the car is cold. Remove the cylinder head cover, remove the two small covers on the left magneto cover of the engine, turn the crankshaft counterclockwise with a socket wrench, and align the T-notch on the magneto rotor with the inspection hole on the left motor cover. If the valve rocker arm is in a relaxed state at this time, the valve clearance can be checked and adjusted. If the valve rocker arm is too tight at this time, it is necessary to rotate the crankshaft again and realign it, and then adjust the valve rocker arm when the valve rocker arm is too loose. If the valve clearance is incorrect, loosen the lock nut of the adjusting screw with a wrench, then turn the adjusting screw and adjust the clearance to the specified value with a feeler gauge. Finally, tighten the lock nut, turn the crankshaft several times and readjust the timing. After checking the valve clearance, install all parts to start the engine.

Adjusting the valve clearance requires certain maintenance experience and tools. Non-professional maintenance personnel should not adjust themselves to avoid making mistakes and damaging the engine.