What Causes a Motorcycle to Have No High Voltage Spark When Starting?

[LaKeira]

When a motorcycle has no high voltage spark during starting, it indicates an issue with the ignition system components or their wiring connections. Below are the specific reasons: Potential wiring issues in the following parts: Faults in the spark plug, ignition coil, ignition module, magneto coil, ignition switch, kill switch, and side stand kill switch (if equipped), as well as open or short circuits in their wiring connections. For fuel-injected motorcycles, also check for issues with sensors related to ignition and the ECU. Corresponding solutions: Conduct a step-by-step inspection: check the spark plug, high-tension wire, ignition coil, and trigger coil. The engine cover on the left side usually doesn't have issues—problems are mostly in the electrical circuit. Sometimes, a faulty ignition switch circuit can shut down the entire electrical system. First, remove the spark plug cap, insert a screwdriver into the cap's electrode, and ground it to the frame. Then, kick-start the engine to test for spark. If there's spark, the issue is with the spark plug. If not, the problem lies elsewhere—start by checking if the spark plug is faulty.