How to deal with the failure of Tricycle Motorcycle?

If the idle jitter of a Tricycle Motorcycle and the idle jitter of a hot car exist at the same time, the idle jitter of the hot car must be eliminated first. To determine whether there is jitter, observe whether the Tricycle Motorcycle engine tachometer pointer swings or read the engine speed in the data block, because when the Tricycle Motorcycle engine foot pad is damaged, especially after the automatic transmission is shifted into forward gear, it will also The Tricycle Motorcycle engine vibrates at idle speed.

1. There are several reasons why Tricycle Motorcycle vibrate at idle speed when cold.
① Mechanical failure of the Tricycle Motorcycle engine. For example, the pressure in each cylinder is not uniform;
②Faulty air intake system, such as air intake pipe leakage. Excessive carbon deposits on the intake valve and intake pipe, excessive dirt on the inner wall of the throttle valve and intake pipe, etc;
③The engine management system of the Tricycle Motorcycle is faulty. For example, the water temperature and intake air temperature signals are incorrect and the circuit is faulty;
④The ignition system is faulty. For example, the spark plug has excessive carbon deposits or incorrect clearance, high-voltage wires and distributor caps are leaking, and the ignition coil is damaged;
⑤The oil supply system is faulty. For example, the nozzle does not close tightly or is clogged due to excessive colloidal carbon deposits in the nozzle.
Although many Tricycle Motorcycle manufacturers' user manuals indicate that they can start without preheating after a cold start, the author believes that it is beneficial for the Tricycle Motorcycle engine to warm up slightly for 3-5 minutes after starting. Because this can reduce the mechanical wear of the engine, so that the Tricycle Motorcycle engine has sufficient power when starting a small-displacement vehicle. Starting in a cold car with a large gas pedal is a bad way to drive and can be avoided by accelerating. If a cold car starts with slow refueling, this is a fault.
2. The reasons for poor acceleration of cold car are as follows:
①The engine mechanical system of the Tricycle Motorcycle is faulty. For example, low cylinder pressure causes a reduction in engine power, which is better when the car is cold, and excessive carbon is deposited in the intake valve and intake pipe;
② There is too much carbon deposit on the intake valve and intake pipe. As a result, the injected gasoline is adsorbed by carbon deposits and cannot enter the combustion chamber;
③The engine management system of the Tricycle Motorcycle is faulty. For example, the water temperature and intake air temperature signals are incorrect and the circuit is faulty;
④The ignition system is faulty. For example, the spark plug has excessive carbon deposits or incorrect clearance, high-voltage wires and distributor caps are leaking, and the ignition coil is damaged;
⑤The fuel supply system of the Tricycle Motorcycle is faulty. For example, the nozzle does not close tightly or is clogged due to excessive colloidal carbon deposits in the nozzle.