KX250F Bogs ?????

[phranticness]

Mabey I should have put this in with my last thread about valve clearance specs, but this is a totally different topic, and I can't find any answers with my searches.

The bog is low RPM, when I blip the throttle to get over a rut or log, or roll on out a corner. as long as I'm in the midrange throttle response is fine, also idle seems to hunt a bit at idle and no load low rpm

This is an 04' with really low hours, so I suspect this bog has been here since the start. It feels lean to me, and if it were a car I'd say the accelerater pump is out of adjustment. I don't have a manual but one is on the way. I fixed the horrible Idle, off Idle and cruise on my KLX with a dyno jet kit, anyone had luck with this for a fix on their RMZ or KXF.
Also is there a mixture screw or air bleed screw, and if so which is it? (air bleed-in for richer, mixture-out for richer) also is the accelerater pump adjustable in any way?

I realize I need a book, like I said one is on the way, but has anyone had a bog on these bikes and found a cure?

any imput, or links to threads I missed would be appreciated. thanks

 

[phranticness]

OK, well, I went another route for some info. The power now quick shot from Boyesen seems to be the answer to my problem. I'll update the thread when I install.

 

[yellow725]

richen up the fuel screw it is the screw on the bottom of the carb a little tricky to get to sometimes you have to turn the carb to get to it.

 

[phranticness]

Just an update guys.............I tried the mixture screw prior to the quickshot. that helped a little. the boyesen has fixed 99% of the bog, along with proper idle mixture adjustment. Note: mixture is adusted out for rich, in for lean. I richened it up a A 1/2 turn from stock.