Which wire to cut to start a motorcycle?
2 Answers
Alternate ignition with two wires. Below is the specific introduction of relevant content: Wiring ignition: The method to start a motorcycle without a key is to connect the red wire and black wire together to start. Locate the wires of the ignition device, one red and one black, where red is positive and black is negative. Touch the two wire ends together to start the motorcycle. Ignition system: Consists of the ignition coil, CDI igniter, high-voltage coil, spark plug, etc. The primary electricity emitted by the motorcycle's ignition coil enters the igniter, then the current passes through the igniter into the high-voltage coil. The high-intensity current from the high-voltage coil enters the spark plug to ignite and burn the gasoline in the cylinder, pushing the crankshaft to work under high explosive pressure.
Well, this is a tricky issue, and I need to address it from a safety perspective. Cutting wires to hotwire a motorcycle is really unreliable. I've seen many people try this, and the results are either sparks flying from the circuits or a short-circuited battery—at best, it burns out the wires, and at worst, it can cause a fire. More importantly, this often relates to illegal ignition and may be suspected as vehicle theft. My advice is, if your bike won't start, don’t even think about cutting wires. First, check if the battery is undercharged or if there’s an issue with the ignition switch. Take it to a professional motorcycle repair shop and let a technician diagnose it—safety comes first. Modern motorcycle electronic systems are complex, and randomly cutting wires can easily damage more components, like disabling the anti-theft system. I once worked on a case where a DIY attempt caused a fuse to blow, doubling the repair costs. In short, the key ignition is designed to protect both you and the bike. If there’s a problem, consulting an expert is the right way to go.
