Where can I buy/How can I build a brake light switch?

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Mystify
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Where can I buy/How can I build a brake light switch?

xb500

Turn the bike on, turn the lights on, the rear light is on.
Pull the breaks, nothing happens.

Now, I have recently pulled the stock bulb and replaced it all with an LED array - and I installed 2 of them. One that will be one at all times (a direct bulb replacement) and the second set I want to come on when the breaks are on... like a break light in a car.

Question: Is there something out there already that will allow me to do that - a special switch or something that is easy to install and use?

if not

Question: Any good ideas on how to go about building one?

I have a few ideas, but I thought I would ask first

Cheers
Dave

captainslug
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Re: Where can I buy/How can I build a brake light switch?

You just need a Normally Closed push-button switch that's released when the brake lever is pulled.

mf70
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Re: Where can I buy/How can I build a brake light switch?

I assume the wiring is the same as the XB-600. You probably already have the switches in place.

According to the XB-600 wiring diagram, there are "Normally-Open" switches on each "break" connected to the rear light unit through contact 6 of the 6-way connector (no wire color given). There is probably a switch at each brake lever.

There's a three-wire run from the controller that energizes the light circuit from the yellow wire in contact 1 of a 3-way connector, and carries sense information on brake activation back to the controller (no power when brakes are on) on contact 2 and 3 of the same connector.

Trace and test. The VOM is your friend.

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