I put an FMF silencer on my stock '96 WXC 360 pipe this spring and it seems to have knocked the already short top end right off of it. I'm curious though, whether rejetting would help regain top end? I know a mismatched silencer would detune the exhaust, but it may also affect jetting. The thing is, it doesn't miss, stutter, bog, or anything. It just gets done revving sooner than it had before. The reason I started thinking jetting might help is because I put a new 'off the shelf' carburetor on my '75 TM400 and it will no longer get on the pipe at all. Same deal, no problems other than loss of "hit". I had attributed that to possible wear in the bottom end maybe causing it 'wind out' too soon.
Anyhow, do you guys think improper jetting would keep an otherwise good running bike from reaching the power band?
Anyhow, do you guys think improper jetting would keep an otherwise good running bike from reaching the power band?