What to Do When a Motorcycle Won't Start After Sitting for a Long Time?

[PiperDella]

Check if the motorcycle's switch is turned on. Verify if there is gasoline in the fuel tank. Observe whether the spark plug is igniting normally. If the ignition is unstable, clean the carbon deposits from the spark plug head. Below is more information about spark plugs: 1. The spark plug is a critical component of a motorcycle engine. The normal combustion of the air-fuel mixture is key to the engine's proper operation. First, the type of spark plug used varies by engine, mainly differing in heat range and thread size, so it's essential to use the specified spark plug model. 2. For normal engine combustion, unscrew the spark plug and observe; the electrodes should normally be reddish-brown. If they appear black, indicating carbon deposits, it means the air-fuel mixture is too rich and combustion is incomplete. Clean the carbon deposits using a pointed tool to remove buildup from the central electrode groove and the L-electrode.