Ignition Coil gone bad?
Posted: Wed Apr 07, 2010 12:48 pm
I have a 1980 GL1100. I was taking it home the other day, and after driving it about a little over an hour, I started to lose power. I would have the throttle completely down, and the bike would only travel about 30 M.P.H. Then, just like nothing, it would get back going, and I would be going about 70, but it would not want to accelerate at all. So, I pulled over to the side of the road, and monkeyed around with some stuff. I suspected maybe some loose wires from the boots, so I made sure the all the wires were in good. I then got back on the road, and the bike ran good for about 20 minutes, and then the same stuff happened again. I then decided to change the plugs out. When I pulled out the plugs, two of them were pretty black and sooty, and they had only been in the bike for about two hundred miles. But I put in four new plugs, and then the bike ran good the rest of the way home. Does anybody have any thoughts on what is causing this? Right now I am thinking that it may be an ignition coil. The two plugs that were bad were from the same igntition coil, and the fact that when I stopped for about a while to mess around with the wires, the coil was given the chance to cool down a little bit, so then they worked for about 20 minutes when I got back on the road. Just wondering if anybody has had similiar problems. Thanks.