Help! Off idle bog

01 off road, Bike is stock except for FMF Power core four, I am at 3000ft elevation. The bike is hard to start, after warm up and then when I try and blip the throttle it bogs. Any help is appreciated.

hard to start=check the valve clearance.

does sit bog while riding it or blipping the trottle on tha stand?

did the bike sit for along period of time?

It bogs while riding it, like going through a small creek and trying to lift the front end, when I blip the throttle and try to lift it bogs.

Thanks,

could it be too rich for 3000ft?

stock pipe with aftermarket exhaust...

bump !!

hard to start=check the valve clearance.

did the bike sit for along period of time?

current jetting?

accelerator pump duration?

Bike has the stock jetting

If you're running the Keihin FCR carb then Boysen have a replacement acceleration pump cover known as a Quikshot that may help.

did you check the valves yet?

im not kidding.

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