How to start a motorcycle after a long time?

Remove the carburetor, carefully clean and dredge the spray hole on the carburetor, and then install it.

Motorcycles can't start well or can't start for a long time, which is mostly caused by carburetor blockage. The gasoline in the carburetor will volatilize and deteriorate for a motorcycle that has not been ridden for a long time, forming a viscous substance to block the nozzle of the carburetor, and it is impossible to inject oil and start it.

At the same time, check whether the spark plug and high voltage electricity are normal. If the battery is left for a long time, it will be dead or scrapped. You can charge it with a charger. If it cannot be charged, please replace it with a new battery. Motorcycles that have been left for a long time should also check the condition of the oil. If the oil is not good, it should be replaced after the hot car. If the oil quality in the oil tank is poor, it should be replaced together.

Extended data:

Carburetor is an important part of motorcycle fuel supply system, which is located between air filter and engine intake. Motorcycle engines generally adopt carburetor, plunger throttle valve and float chamber throttle valve with horizontal intake flow direction.

The carburetor structure mainly consists of a float chamber and a mixing chamber. The float chamber is located below the carburetor, and the oil pipe is communicated with the oil tank through the throttle switch. The oil level in the float chamber is maintained at a certain height through the needle valve on the float, and the oil supply pressure is stable.

The function of the mixing chamber is to evaporate and atomize gasoline and mix it with air, so that the engine can get the required mixture at various loads and speeds. It consists of throttle valve, injection needle, injection pipe, gas path and oil path.

References:

Motorcycle-Baidu Encyclopedia