What is the reason why the public opinion van cannot speed up?

There are many reasons: the throttle valve on the engine is not tightly closed, the spark plug is burnt out, the ignition coil leaks electricity, the oil circuit is blocked, the gasoline pump fails, the throttle gap is too large, and the engine can't step on it. All the above conditions will cause the engine to fail to refuel, so you can check and clean the throttle valve first in the maintenance process, but you can't replace it. If the problem is not solved, continue to check the spark plug, high voltage line and ignition coil, and finally check the oil circuit. Check whether the pressure of the oil pump is too low when working. The pressure of general gasoline pipeline is 3kg/mpa. If the pressure is too low, replace the gasoline grille, oil pump and clean the oil tank. After the above situation is repaired, the problem can be basically solved.