My first attempt was with the Vizi-Tec "SupaBrake" module. For some reason it won't work. No brake light at all with the module installed. Tried two different modules. Ended up returning for refund.
My second attempt was with a "36 mode universal brake light flasher/strober". I wired it up and it too won't work properly on my bike. It flashes/strobes like it's supposed to, but the delay function doesn't work. I tried the module powered by a 12VDC power supply and it works perfectly. Strange.
At this point I'm convinced that there's something strange with my bike's brake light circuit. When I put a volt meter across the brake light (yellow) wire and ground, I'm seeing +8 VDC on the brake like circuit with brakes OFF, and +12 VDC on the circuit with the brakes ON. What's up with that?
I spoke to the manufacturer of the SupaBrake and he says that it appears to be an impedance issue. He says that the bike must use an open-collector (FET) instead of a relay and that's why I'm seeing the +8 VDC. And it appears that this is why I'm not able to get any of the brake light modulators to work on my bike.
Has anyone else run into this problem?
Edited by Blue Crab, 06 September 2011 - 07:20 AM.