fatboyslim
Member
- Apr 11, 2006
- 255
- 0
I was out riding one day after putting a new aftermarket top end in 3 days earlier and then all of a sudden the bike goes bahh and there is not very much power anymore. I took the piston out and put the stock piston back in that was in the bike when I got it. The aftermarket piston is 54.20 mm and the stock one is 54.25. After I put the stock one back in I push started it b/c it wouldn't kickstart. It started and I let it warm up a little bit to break it in. I shut it off, checked for leaks and was fine. Tried to push start it again and all it would do even when rolling down a hill in 1st gear would go bahhhh.
And when the aftermarket piston was in there the compression was at 150 when it should be 130. All of the gaskets and o-rings are fine too. What should I do?
And when the aftermarket piston was in there the compression was at 150 when it should be 130. All of the gaskets and o-rings are fine too. What should I do?