OK, now I am in a similar position. With only 155psi on my cylinders I am curious if I should hone the block and install new rings? I know motors are made to function with a small % drop in compression but I am not sure about this bike. I rode the bike with 155psi and it pulled strong, however, I have never been on another RC so I have nothing to compare it to. Guys, is 155psi alright or will I be yanking the pistons out tonight?
"IF" I pull the pistons out to hone the walls and install new rings can someone explain why pzilla has 4 colors for rod bearings? Would I be correct by saying they represent oversized bearing?
Last edited by Canty; 04-13-2015 at 08:14 AM.