2006 wr250f

[sruiz67]

Where I the fuel/air mix screw? I find the throttle position knob but don't know where the other is at?

[flyandride]

It's on the underside of the float bowl, towards the engine.  If you can't see it, it's because yours still has the stock screw.  It's recessed into the bowl and would take a small short screwdriver to get to it.  You can get an aftermarket screw that sticks out that you can turn with your fingers. 

[meWR250f]

there might be a cap covering it. Check this out:

 

[sruiz67]

Thanks guys very helpful. I thought that was that sucker. What a great place to put it Yamaha.

[sruiz67]

I have ordered one you can adjust. For now how do you richen the mixture? Do I turn it in or out?

[flyandride]

I have ordered one you can adjust. For now how do you richen the mixture? Do I turn it in or out?

Turn it out.

[sruiz67]

Thank you. Removed some bog and doesn't have lean pops now. I appreciate it. Can't wait till the one comes in that you can do with your fingers.

[sruiz67]

Got the one in, to adjust with finger. The bike now sounds great and has a lot less bog. It is great, before it had Lean pops and just wasn't tuned. Until I do the exhaust and rejet this baby is good to go.