The bike will start right up when dead cold. Seems to only run on two cylinders with the others kickin in and out. After about one minute or less the bike will die and not start back up. I get no spark showing with my inductive timing light but a spark plug setting on the frame does show spark. I have tested teh coil and they fall within specs with the ohm meter. I have also tested the spark generator with the ohm meter and it reads 488 instead of 480. Seems close enough to me. The spark box units are not testable according to my book. I have been quoted 95 for each spark box and 55 for the generator. Since I have never rode this bike I am not interested in spending 250.00 bucks just to seek what kind of shape the rest of it is in. Anyone have a good idea if its the spark generator or how I can test the spark box units?