Back on the road. Fast Bike Motors in Vegas sent my a complete new YD100 kit and threw in a new piston and ring set for my original engine. That is excellent service from the China Doll lady on the phone. All she wanted was some pictures and I didn't have to mail anything back. So I got a Motive Stonegrinder from Goodwill for $25.00 and put the new kit on it (pictured). What a cheap hobby, I got 2 kits for $150.00 and 2 bikes for $60.00 so for $210.00 and I now have 2 motorized bicycles. I'm worried about the G-clips failing again so have ordered some Wiseco 10mm cw piston circlips for a Yamaha PW-50, hope they work.