Jasle said:
wiring them open usually takes away bottom end power and leaves topend alone. if they are not open all the way at max rpm then you don't have the right exh port timing for the rpm your at.
Thanks, that is what I thought should happen. I really didn't see much difference in the bottom, but with the 144 there is plenty of that to go around. It still had no power on top at all and it seemed like the longer into the moto it went the worst it got. I could hear it when he came by sometimes like it had a bad bog and a miss when he came up to a jump.
I took the carb off about a million times and checked and there was no water in the fuel and the jet's were clean. I am running the same jets as I have always run, 430MJ and a 42.5 pilot, stock needle in the third clip.
I took the jug off yesterday and looked at the piston. It looked clean, only there was the marks embedded where the exhaust bridge is. They seem rather deep to me and this time I took off the jug the ring had a flat spot on it. The first ring I took off looked brand new but the piston was marked. I have less hours on this piston than I did the frist time so something is diffenitly going on.
I think I'm going to send this cylinder back to Eric and get him to check it over before I pull much more of my hair out. LOL There has to be something wrong somewhere that I just can't put my finger on. At least if he checks it out and it's ok then I'll know I have to keep digging. I have aother ignition system I'm going to take this weekend. I'm going to put the stock cylinder back on for the race this upcomming weekend and hopefully that will eliminate that possibility.