I have never had any trouble with thr.resp I installed a jet kit about 2 yrs ago.if i grab full throttle at about 6,000rpms in 6th gear. it hesitates. never done this before adjusting the needles did not work.could it be the fuel pump? any suggestion greatly appreciated

 

huh, well, sounds like its missing under load. I know this has been said 10039498387 times on here, but how new are the plugs? Hows the air cleaner? It sounds like a cylinder is flooding out, which in itself is intresting. Try the plugs first, then aircleaner, so forth. Hope this helps

 

you nailed it I changed to a hotter plug 4 cold weather riding a couple mnts ago,later

 

Sweet! Love it when Im right! Glad I could help!!!