[115x]

i have a crf 50 with a two bros 88 kit crower ported head crower cam macuni 20 carb and a pipe
it has ok low and mid range power but when i rev it up it revs and after a second it will baug then it will rex again then it will baug
happends in nuetral and under power
any help plz

[KevinM]

I have a 70 with a similar 88 kit. I've not had issues like that.

If it's really bogging, maybe your main jet is clogged? Main jet handle 3/4 throttle to full throttle. Needle handles 1/4 to 3/4 throttle.

If the carb is clean, maybe a differnce main jet will work better for you. You'd have to find out what's in there. Maybe giver Crower a call.

Are you sure it's not just hitting the rev limiter at 9800 rpm?