I remember one time back in the late 70’s I found an old twin cylinder Sears Waterwich, maybe a 5 horse, maybe. I took it down to the crankshaft to look at the connecting rods and the Reed valves and how they were made at that time and to see if they looked ok enough to run if this motor would. I put it all back together and tried to start it and it didn’t want to run. I knew the updraft carburator was clean and it wasen’t the problem and the settings on it was close enough for it to atleast start, I could fine tune it later. I checked for spark and there wasen’t any. I jury rigged another condenser into place and takeing the old one, (brass) out and retried to start it, still no spark. I knew then it had to be the windings in the coil. I looked at the sides of the coil and seen a small dark spot where the windings shorted out and knew they were broken and not making connection. I took all the windings off down to the frame of the coil. I went and bought some 1″ wide celephane tape and went to an electric motor repair company and bought some wire that was 10 thousandths of an inch thick, small thin wire coated with varnish to keep it insulated. I placed the tape with the sticky side up to hold the windings in place as I wound the wire around the frame and began to wind the wire, one course next to the other. I got to the end and put on another piece of tape and did the same until I had about 15 thicknesses or about the same number as the old coil. It took all day to wind this coil but knew I had too if I was going to get this engine to run. I put it back in the motor and hooked everything back up. This motor was one of the old ones that you wrapped the rope around the flywheeel and then pulled. I did that with the plugs out and laying on the block where I could see the plugs fire and when I pulled the rope the plugs were fireing, a nice bright and solid blue. I put the plugs back in and put gas in the fueltank mounted on the engine, then pulled the starer rope again and it started,,,and ran, it ran good too. I then put it in a garbage can filled with water and started it again. It ideled good and I then fine tuned the air mix screw so it ideled and started good. I then let it warm up and then throtteled it up a little at a time, then opened it up, wide open. It ran good and with no muffler it was loud but still pretty cool to hear run, exhaust smoke and all. I found this old motor underneath some hay in an old abandoned barn that was falling down. That motor haden’t been started in probably 40 years and it was the oldest motor I had ever heard run. It was pretty cool to hear that motor run and with this motor both plugs fired at the same time with opposing cylinders. One coil fired both plugs in the two cylinders at the same time which I thought was pretty cool. Old motors are pretty cool to see run and to listen too, especially if you don’t know if they will or not. Old motors talk thier own language.