What are the symptoms and causes of motorcycle misfiring?

[SanAriel]

Motorcycle misfiring symptoms and causes are as follows: Misfiring symptoms: At idle, the body shakes noticeably. Observing the exhaust pipe outlet, the exhaust gas flow shows obvious intermittency, accompanied by severe exhaust pipe vibration. Distinct "popping" or "thumping" sounds can be clearly heard. The main manifestations of misfiring include severe engine vibration. When one or more cylinders fail to operate, the engine's balance is disrupted. The crankshaft reaches a point where cylinder combustion should generate thrust, but without it, the RPM drops. When the next cylinder combusts and provides thrust, the RPM rises, resulting in unstable engine speed and vibration. Misfiring causes: The most common cause of motorcycle misfiring is spark plug damage, which prevents ignition. Without ignition, the cylinder cannot combust, leading to misfiring. Another possible cause is fuel injector damage, where either no fuel is injected or the fuel atomization is poor, also resulting in incomplete combustion and misfiring.