Re: My brakes are working as a kill switch?

Born to be WillD /
This single post is part of a larger thread. Start from the top or view this post in context.

I just wrote this for a guy with opposite problem so I'll repost:

Basically the issue is that the coil for the ignition grounds through the brakes. When riding along, the levers are released, it's grounded through the brake switches, and the ignition still sparks. When you pull the levers to brake, it breaks the ground and the power instead goes through the brakelight bulb, causing it to light up, and it is grounding through the bulb (and/or rear resistor) and still sparking.

The most common problem this creates is if there's an issue in the bulb or wiring, then it can't ground through the bulb, and pulling the brakes makes spark cut out.

The properest fix is replacing the bulb with correct voltage/wattage replacement, ensuring the ceramic insulated resistor block (if there is one) is in OK shape, and ensuring your wires are all connected and proper and clean at the connections.

The common easy fix is just ground the brakelight wire directly from the engine. you lose the brakelight functionality but your bike runs even when you're braking and it isn't going to screw you later for just a brakelight issue. You can rewire the brakelight to run off your lighting coil if you wish, but it requires different switch buttons. Easiest, just use hand signals. if you've got a headlight and taillight you're legal.

This single post is part of a larger thread. Start from the top or view this post in context.

Want to post in this forum? We'd love to have you join the discussion, but first:

Login or Create Account