How to make Chang 'an Starlight 4500 lack power?

Check the reasons for lack of motivation and then solve the problem.

The reasons for the lack of motivation are:

(1) The maximum opening of the carburetor throttle is not enough, so the throttle transmission part should be adjusted.

(2) The backflow of carburetor choke is blocked, which leads to the mixture being too rich.

(3) The oil level in the carburetor float chamber is too low or too high, which makes the mixture too thin or too rich.

(4) The main throttle hole of carburetor is partially blocked.

(5) The air filter is invalid and the filter element is dirty, resulting in insufficient inflation.

(6) The air intake manifold leaks and the air intake is short-circuited.

(7) Contact with polluted distributor or small gap. (8) If the ignition is too late, the rapid combustion period will be delayed, and if the ignition is too early, it will produce detonation combustion and reduce the power.

(9) The valve is not tightly closed, the cam is worn, the valve timing assembly is faulty, and the inflation efficiency is reduced. (10) The engine has poor heat dissipation and the water temperature is too high, which reduces the inflation coefficient.

(1 1) The piston, piston ring and cylinder are worn, which makes the cylinder pressure drop. Check with the cylinder pressure gauge.

(12) Pull the cylinder or burn the piston to reduce the compression pressure of the engine.