I have one of these a friend sold me for a couple of bucks last summer. Spent a couple of fall months trying to get it to run. Installed new fuel lines, rebuilt fuel pump, fuel filter, air filter, condensor, cleaned carb, adjusted and cleaned points, finally had it running on my bench late last year. Ran fuel dry, stored for winter, but I just put it on the bike this week, ran for 1/2 hour quit...no spark. I had that problem before adjusting points last year. I double checked, sanded, and adjusted the points again. I think maybe could be the coil or spark plug wire. I think I've licked the fuel issues, just can't get a handle on the intermittent electrical problem. I'm getting frustrated. I had one these in the 80's. It was a sweet ride.