Well, I made my 77 Puch Newport into a 2-speed today. It was an interesting experience. Here's some interesting things to remember when making a one speed Puch into a two speed Puch:
1. The intake manifold must be taller on a two speed than on a one speed.
2. You have to get creative when relocating the coil. Mine was half bracketed to the intake stud, half wedged between the starter clutch cable and the carburator.
3. Write down the wiring diagram before you pull everything apart.
4. Most importantly, make sure you're putting in a good transmission.
This was the first time the transmission had been run with an engine that didn't have an exhaust leak. I discovered that the transmission made some noises that were't exactly "music to my ears" (well, thrash-metal maybe). The sound resembled every piece in the transmission grinding against every other piece, while at the same time the bearings were shot. Maybe what churning butter mixed with shrapnel sounds like. Needless to say, I'm putting the siggle-speed back in it tomorrow. Goodbye acceleration.
Oh well, I'll just get a Tomos Revival to add to the collection. It's the most beautiful bike I've ever seen. check it out at
I'm getting the pedal version definitely