What Causes a Motorcycle to Fail to Start After Falling Over?
2 Answers
Motorcycle failing to start after falling over could be due to gasoline flooding the cylinder and wetting the spark plug, gasoline entering the air filter causing blockage, or even engine oil entering the air filter or carburetor through the breather tube, leading to failure to start. Below is an introduction to motorcycle spark plugs: 1. Introduction: The spark plug is a crucial component of the gasoline engine's ignition system. It introduces high voltage into the combustion chamber and generates a spark across the electrode gap to ignite the combustible mixture in the cylinder. It mainly consists of a terminal nut, insulator, terminal stud, center electrode, side electrode, and shell, with the side electrode welded to the shell. 2. Working Principle: Under high voltage, the air between the spark plug's center electrode and side electrode rapidly ionizes, forming positively charged ions and negatively charged free electrons. When the voltage between the electrodes reaches a certain level, the number of ions and electrons in the gas increases like an avalanche, causing the air to lose its insulating properties.
When a motorcycle falls over and won't start, I can imagine how frustrated you must be. I've also dropped my bike during long-distance rides before and felt equally annoyed when it wouldn't start afterwards. Common causes include electrical issues – like a blown fuse from the impact or short circuits cutting power to the ignition system. It could also be the kill switch being triggered, as some bikes have safety mechanisms that automatically cut the engine. Fuel line blockages or leaks are another possibility, where the fuel pump's position changes after the fall and can't supply fuel properly. Loose connections in electronic components like the CDI box or battery terminals might also be the culprit. Start by checking the basics: see if any dashboard lights come on, make sure the key is in the 'on' position, and listen to the sound when you press the starter button to determine whether there's no response at all or if it cranks briefly then stops. If there's no response, focus on the fuse box and switches; if it makes noise but won't fire up, check the fuel system and air filter. Don't rush into disassembling parts – that could make things worse. It's better to troubleshoot methodically. Remember to check tire pressure and brakes before your next ride as preventive measures. And if your bike falls, avoid forcing the engine – towing it to a repair shop is the safer option.
