One Piece Head 80/66cc Motors?


New Member
Aug 8, 2019
How do these stack up to the original style motors? I just swapped out a bad motor with one of these. I'm still in the break in period, but the low end seems much smoother. The bike is much easier to start, the only thing I don't know yet is top end. My last kit was just getting broken in and the top end was developing. The little bit of throttle I gave it makes me think this may not have as much top end power. That said, less then 2 miles on the break in.

I will say that this kits front engine mount used larger bolts then the last one, but those bolts hit my front tube. It took some serious chin scratching and metal grinding to make it work.