The starter relay feeds positive current to the starter, just like cars. The magnetic windings on the starter relay gets negative power through the start switch on the handlebar. It gets the positive current through the main key switch, then through the fuse, then through the front or rear brake switches (parallel) and finally to the positive post on the starter relay windings. As far as warranty...I live 300 miles away from the dealer so they said they would get a starter relay on hand for when I do come down that way. I purchased a 4 pole 12 volt relay on Ebay for under $11 to the door that I believe will work. In the mean time the original starter relay that came with my Like has been behaving nicely lately. SO, I am carrying enough tools under the seat to get it running in a pinch. Thanks for your interest and input.