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I have a 1976 yamaha xs360 and it won't start. The bike has only 2500 miles and was store for about 20 years, but it was running after that. I've being upgrading the bike and now it has weak & interrupted spark. When I tried to start the bike I discover that the right ignition coil is overheating. It did the same thing with the previous ignition coil and that was the reason why I replace it, but it's still the same. I have install new ignition coil, cables, spark plug . I tried to fix the problem with the timing and points but still the same. I would like to know if the problem is the regulator, starter relay or condenser. Does anybody has any idea on how to resolve my problem? I need help please don't know what else to do Thank you