Very hot coil

rabbitgreen1

XS650 New Member
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Littleton nh
My right side coil is very hot, the left side is cool. What is causing this to happen? Is the coil on the right side damaged, or burning out. One coil has a ground wire attached to it. The other does not.
 
Is this with the bike running or just sitting there with the key on? If the latter then that right coil is constantly charging up and getting hot because it's points set is closed. The left coil's point set is open so no current is going into it and charging it up. So, basically there's nothing wrong, it's how the system works. But obviously, it's not a good idea to let it happen. Don't let the bike sit there for long periods of time with the key on but not running. One or the other coil will get very hot if it's points set is closed.
 
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