Hi im new here nice forum! I own a cbr 150, and have just installed a new stainless steel endurance exhaust, and a K+N air filter. since i done this the bike slightly hesitates from 5-7000 revs when full throttle. it never donr this before.

does my carb need tuning or could it be something else? is it hard to do? any pointers as to where the screw is i need to turn on the carb.

many thanks!

paul

20 views and no replys :( can anyone help me pls?

You need a jet kit. The bike now has a lean spot because of the parts you have added.

I know the CBR125 is fuel injected but It sounds like your CBR150 is carb'd. Its not as simple as just turning a screw, the jet kit will come with a new jet, new needles and such.

Thankyou for your reply Syphen. i turned the mixture screw, but it didnt help at all. i will see if i can buy a new jet kit. Or will i be better off buying bigger carb 28mm theyre quite cheap?

I don't know.. I'd jet the current carb but it is entirely up to you.

Rejet your current carb.
Fitting a bigger carb won't solve your problem.