LED signal lights - BE CAREFUL
I recently fixed an issue I had with my signal lights due to LED signal lights on the bike and it is important for people to know this and BE CAREFUL.
Wiring single intensity LED signals as also running lights will cause any added resistors in that wiring to constantly have current applied to them and they will heat up before very long to the point of melting plastic and anything around them. Super hot. It could easily melt through fairing plastic, wiring, whatever, and be a fire hazard. It is extremely dangerous.
The issue is that most LED signal lights come as single intensity (aka filament in old school bulbs) whereas the RC51 has dual filament wiring on the front signal lights. One wire is for the signal light to be a running light (always on) and the other wire is for the flashing signal. Now I've seen some websites that recommend splicing those two wires together an putting it into the LED signal. These websites also recommend a parallel resistor be put into the wiring at that point to slow the flashing rate down. I bought my bike used with the LED signals on it and that was how they were installed. Interestingly the LED signals did work as running lights and signal lights so things looked okay. However, the instrument panel signal bulb error light was on. And worse, was the heat, which I noticed when I started to smell burning. I don't know how long it was like this before me, but thankfully I found this out before doing much bike riding and there is no damage other than to the housings of the resistors.
The PROPER way to run single intensity LED signal lights is to remove the wiring for the running light. Use only the wire on the bike for the signal flash. Doing this also removed the instrument cluster bulb error light I had earlier. You lose the running light option but you won't have any issues or fires.
I also bought a LED plug and play flash relay for the bike. It worked and slowed down the flashing rate of my signals. I have removed the resistors too since they aren't needed. It is much safer IMO to have the LED flashing relay than to add resistors which generate heat.
As another option, dual intensity LED signal lights are quite rare but out there. Proton makes a set. Post if you know any other dual intensity LED signal lights.
For now, I like the look of my Rizoma zero 11 LED turn signals over the Protons, so it looks like I will give up my running light option at this time.
Last edited by kwtoxman; 03-01-2013 at 01:42 PM.