What Causes Unstable Idle and Easy Stalling in Scooters?

[CharlieAnn]

Idle speed is based on a warmed-up engine standard. When the engine is cold, it automatically becomes slightly lower, and unstable idle under this condition is relatively normal. You can use the choke during startup and warm-up to prevent stalling. If the idle remains unstable after the engine is warmed up, check whether the idle speed is set too low. Readjust the idle speed and inspect whether the carburetor's air-fuel mixture ratio is correctly adjusted and whether the spark plug is functioning properly. Below is relevant information about idle speed: Introduction: Idle state refers to an operational condition when the engine is running without load. When the engine is running and the throttle is completely released, the engine enters idle state. Hazard: When adjusting the idle speed, avoid sudden increases or decreases in RPM, as this can cause premature engine wear. It is best to have the adjustment performed at an automotive repair facility.