michael whiteman
Well-Known Member
- Local time
- 10:45 PM
- Joined
- Mar 2, 2021
- Messages
- 632
I understand all of this, I'm saying, take the pin out and relocate it half way between the intake and exhaust ports. How can the pin come out assuming it gets loose in it's hole? One end of the pin rests in the bottom of the ring groove and the other end , after the piston is installed, will try to come out against the clynder wall. If you remove and polish the sharp edge on the pin it shouldn't scrape the wall. If you're worried about that, like I said, make the pin out of aluminum.There is a pin that keeps the rings from rotating in these 2 strokes. If the ends of the rings are in a port it will snag the port and destroy the top end. The pins can't be relocated to the exaust side because the aluminum will expand faster than the steel pins and cause the pin to come out. The pin will then destroy the top end.