I switched to Pertronix Ignitor electronic system in my three Bombardier J5's and they work perfect. Get rid of the ballast resister, points and condenser. Good instructions and about 30 minutes to complete. I also replaced the coil with there high voltage coil to deliver a much stronger spark and I installed their ignition relay switch so the system gets full voltage without volt drop when you turn on all the lights and fans and other acc. Pertronix has all the items. More power and fast instant starts hot or cold.