hey guys i have a 99 cbr 600 with a d and d slip on and a k and n air filter its kind of a dog until you hit the higher rpms and then the thing takes off like a screaming demon. what do you guys think i should do

 

Probably a Jet kit would be your best bet. I just did mine this year and i am in love.. If you aren't handy with a wrench or have trouble with small pieces i would recommend some one to help you or your last bet would be bike garage. You could also do your fuel filter as well.. Thats like a 10 dollar try..

Good luck

 

its too rich at lower rpms and as you open it up it starts to lean out and run right. Goto factorypro.com. click the product support/technical support hyperlink on the top of the page and then the CV carb tuning link. then select high rpm engines. That will teach you how to jet your bike.

 

yepp thats exactly what happens it like leans out in the higher rpms. but yeah im going to do that thanks guys. i was thinking i needed to go smaller on the pilots but im thinking im going to start off simple and see if i can try leaning it out a lil bit with the air fuel mixture screw. if that dont work ill pry move my needles down one notch hopefully it wont be to much of a pain in the ***. thanks a lot though guys all appreciated..