2004 CRF 250 problem.?

Question

When im riding say on a straight away, right when im about towards the end of the power band for that gear the bike starts to fail. I don't know it sounds like its not getting enough gas or something. It only happens towards the end of a gear's power band. On the motocross track it happens after a turn when i need power to clear a jump and on a straight away. I dont know what it could be so any input is appreciated, thnx.

Ps: I already cleaned my carb, airbox, and filter.

Answer 1

Need to know how many hours on the bike since your last overhaul. Could be just your leekjet in your accelerator pump. Dose it bog when you land?

Answer 2

Does it sound like its poping? like its at the end of the power and it pops. droping and rising really fast in rpms? if so its most likely the rev limiter kicking in. this keeps you from redlining to long and blowing your top end. Almost all bikes have this.

Answer 3

Have you ever adjusted the valves?

Answer 4

readjust valves