Charlie I just want to say thanks for this awesome thread!!! You are my hero.
I got a 103 that was literally parts in boxes, got it assembled, dremeled the exhaust lip, dropped 3 balls from the variator, threw a sha 16:16 on it and derestricted the exhaust and I'm hitting a consistent 37mph on it (and im a fat bastard).
I'm running the stock mbk cdi on it and I've got a cheapo 1977 circuit on order. I'm loving this ped!