A note on the resistor style heaters, the wires coming out of the resistor are extremely fragile. Instead of using that resistor, use a turn signal flasher, one for multiple lights. The flasher on my KLR has a lot of hours on it, still works fine, unlike the resistor that failed after a couple of days riding. It was mounted securely, BTW.
Also, the flasher will save electricity instead of wasting it away as heat when using said resistor.
Care to elaborate on this. My dad's bike that I am restoring has the heated grips (not elements) and the resistors are all cracked up (probably won't work). Are you saying to direct wire for high and run a flasher for a medium range? Multiple lights meaning heavy-duty? Sounds neat.That's pretty much it. I used a cheap Ideal "heavy duty" mechanical(thermal) flasher. I reckon you could use onna them fan-dancy electronic ones.
I'm not going to wire in a relay b/c I can imagine there will be plenty of times I want to leave the heaters on for a few minutes while the bike is off.
I am having a problem getting the throttle grip to stick. I used WD-40 to get them off, then cleaned with brake cleaner. I think that may have been my mistake. I've used hair spray to put them back on but it still slips. Suggestions anyone?