Eric or Rich

I am sorry to beat this subject to death but I am curious about the 04 KX 125 cylinder. I have it jetted correctlyThe plug is a br8es and it is perfect. Also I started to play with the timming. So here is my dilema it feels like the top end is not what it should be my compression is 160# so thats good, I read in erics hand book that the cylinder base needs to be turned down .030 to match the yz. Will this aid in keeping better over rev, or would widening the ports help? The reason it is so short on the pipe is that the transfers are too high right? Back to the timming if I set it at the full retard position it seems to help some. How exactly is the PC pipe different from the stock one, Does it help a sufficient amount. BTW my gearing is 13/51

no wffr you didnt but in at all i did not know that the es was like that. so my question is is the kawi cylinder just designed like that. the bike is fast and runs great but feels so short on the pipe. maybe I just need to shift earlier, It is just habit to rev the piss out of it.

No it is a completly stock the only thing i did was jet it and play with the timming. I was just curious to know if that is how the motor is right from kawasaki, it feels like a lightswitch.