The belt drive of pedal models is the most commonly used design for pedal motorcycles

Like handlebars, front, low speed driving, etc., there have been jitter situations, jitter amplitude is different, some large and small, but it is very difficult to drive,

Bearings are responsible for reducing friction and promoting the power of the engine to the wheels.

The carburetor is an important part of the motorcycle, so it should be cleaned more after maintenance

Motorcycles have mainly experienced two strokes, four strokes, carburetor, EFI four eras, in addition to EFI motorcycles, other models and carburetors are inseparable.

Oil as the engine oil, known as the "blood" of the engine, plays a vital role in the engine,

Spark plug is a necessary thing on the gasoline engine, generally one cylinder has a spark plug.

This paper gives us a more complete diagnostic detection methods.