my bike always seemed to crank over and start. Now,today, I started it and it idled good. Now ,a wire that goes to my MSD box got a little burnt from the header. I guess that made the engine turn off. I tried turning it on and no crank at all. I checked fuses ,they look good.Is there something else that I can check? A relay? How can I run straight wire to see if starter spins, to narrow it down?