Hopefully, someone here can help. I bought a 77 sportster back in 91 and rode it for years without any major problems. I has some kind of electrical short and about a year ago that fried the wiring harness. Anyway, the bike sat for over a year and my wife decided to surprise me by having it restored. To make a long story short, the bike was stripped down powdered coated, generator tested and rebuilt, new wiring harness, fuel cock, front controls, signal indicators, coil, points, condensor, khein carb rebuilt. Pretty much everything new except motor and transmission. The problem, bike runs fine at low rpms, up to and around 30mph, can ride around neighborhood all day, once you crank into it, bike dies, let it sit 10-15 minutes, can drive it back home slowly. Pulled the ignition cover plate off, fired the bike up, points firing then quit after idling for a few minutes. Any body have any ideas???