You folks have helped me a lot already and it much appreciated. I have not checked the coil yet. Normally on the Maxi's that I've owned the pack is right next to the carb on the drivers right hand side. This coil pack is up in the frame. Any thoughts? If you look to the right hand side of the photo you will see its a Bosch wire. Also its a Bosch plug. I'm confident this is stock. Was thinking of installing a fresh coil but in this case looks like you have to drop the engine. Any ideas?