coils

Hello. Joined the forum to help out a friend who asked for my help with his 1979 XS400. 1. The bike sat outside for 2 years and even if you supply 12 volts, none of the lights, gauge cluster, or even the starter works. The ignition cylinder is getting 12v and the switch does switch on 12v after...

I was swapping coils from a known good bike with another that I had determined was bad. One bike has coils with 12VCM-54 and the other has 12VCM-55 on them, are they really different or simply production changes? Both are on 1980 XS400 of the same model.

So I am not really tearing into my bike too much until winter comes here in utah in around november, but Ive been messing around here and there while still keeping it my daily rider. I am looking into replacing all the aspects of the igniton system on my bike for reliability and modern...

Hi all, I've got a puzzling problem. After a complete carb rebuild on my 1977 xs360 I was stress testing it. At first I took it on an easy in town ride followed by the freeway. Everything went awesome until about a mile from my house I pulled the clutch and rev'ed my engine up to around 10k. My...

I finally found where the ig coils were, but am I suppose to lower the engine to remove them all the way? I have it unplugged and unbolted from the frame so far, but there just doesn't seem to be enough room to pull it all the way out. Having trouble with no spark on left cylinder. I tried...