How Often Should a Scooter Transmission Case Be Cleaned?

[ODelaney]

Scooter transmission cases generally need to be cleaned every 2,000 kilometers. Below is relevant information about scooters: 1. Principle of scooter transmission cases: Scooters use continuously variable transmission (CVT). The principle involves the overrunning clutch driving the transmission case, which ultimately transfers power to the rear wheel for propulsion. Inside the transmission case, a driving gear rotates a driven gear via a belt. The driving gear is smaller, while the driven gear is larger. When the engine speed is too low, due to insufficient centrifugal force, the small gear drives the large gear to rotate steadily, resulting in lower vehicle speed. When the engine speed increases to a certain level, the centrifugal force causes the driving gear's belt rotation diameter to expand, effectively making the large gear drive the small gear, thereby increasing the vehicle's speed. 2. Causes of abnormal noises in scooter transmission cases: If there are abnormal noises in the scooter's transmission case, it may be due to damage to transmission gears, bearings, etc. Additionally, the gear oil should be checked for issues. Sometimes, poor brake shoes can also cause abnormal noises.