What are the causes of motorcycle spontaneous combustion?
1 Answers
Motorcycle spontaneous combustion is mainly caused by electrical connectors or wires short-circuiting and sparking, generating high temperatures that ignite flammable paint, leaked gasoline, or other combustible materials. Therefore, electrical leakage or short-circuit sparks are key factors, and reducing fuel leakage is particularly important. The specific causes of spontaneous combustion are as follows: High-voltage ignition leakage and sparking: When the engine is running, the ignition coil reaches high temperatures, causing the insulation of the high-voltage ignition wires to soften, age, crack, or degrade. This allows the high-voltage ignition electricity to easily penetrate the insulation (at the cracked or damaged areas) and spark between the wire and the motorcycle frame (grounding). If these sparks come into contact with the paint on the frame or fuel tank, or with gasoline leaking from the carburetor, it can lead to ignition and combustion. Electrical or wire breakage sparking: All electrical components, switches, and wires typically carry low voltage, but if there is a break, poor contact, or insulation damage, a short-circuit spark can occur. Electrical failure and short-circuiting: A common example is the rear brake light failing due to contact point welding. Prolonged grounding can cause high current to pass through the wire, melting the insulation and leading to widespread electrical leakage. The resulting high temperatures can ignite flammable materials such as paint or leaked fuel.
