well,been a while since i posted. oo trailblazer, with after market rims tires and all the gizmos. had the had milled, ported, polished, new piston .20. my compression is high, 210 ! i know i know. running a DG pip (which i hate,noticed top part of packing is a lil burned up), got a new clutch kit from RCR. my problem is the quad just wont rap (rpms) out in the top end, its like the bike has plenty of revs left, i just cant get then out, i bet im only running @ 50-55 and have a 12 tooth counter sprocket. where is all the top end at ?

 

Your quad won't build up RPMs because you are using a DG pipe!!! Lose the DG and get a HPD!!

 

What muffler are you running? Mufflers act like rev limiters on these bikes. Sounds like you need to get a new pipe and muffler. I'd go with HPD.

 

Make sure that you get a new clutch kit with the pipe.