What to Do If an EFI Motorcycle Has Unstable Idle and Is Prone to Stalling?

1 Answers
Tessa
07/29/25 4:54pm
Check whether the air filter is oil-soaked or clogged, whether the nozzle is blocked, clean the throttle body and nozzle, and check whether the spark plug is faulty, whether the gasoline is stale, whether the valve clearance is too small or not tightly closed, whether there is slight air leakage in the intake pipe and other related hoses, and whether the sensors are faulty or have loose wiring connections. Below is a related introduction to carburetor engines; 1. Working Principle; The working principle is somewhat different from that of a car engine. A carburetor engine has an adjustable idle speed. If the motorcycle engine's idle speed is too low, it may shake and be prone to stalling at idle. In this case, riders can increase the idle speed. 2. Checking the Throttle Body; If an EFI engine experiences unstable idle, the throttle body should be checked. The spark plug on the engine is a wearable part that needs regular replacement. If the spark plug is used for a long time, the electrode gap may widen, affecting ignition. Additionally, carbon deposits may form on the electrodes over time, which can also impair spark plug performance.
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