Question for those with the Thumper 270 kit

[Heckler]

What jetting did you end up with for your 250x? TR sent me a 165 main, and a 45 pilot. Fill in the blanks below.

Main: _______

Pilot: _______

Needle: _______ (Stock, CC, JD)

Needle clip: _______

Leak Jet: _______

Fuel Screw: _______

Exhaust: _______ (stock, opened up, aftermarket, etc.)

Airbox: _______ (open or closed)

[Heckler]

Anyone?

[Odave]

I installed a Thumper Racing 270 kit on my "04 CRF250X, opened up the air box to the closed course specs, pulled the plug on the muffler, stock cam. I'm running a 165 main, 45 Pilot, 2.5 turns on screw, 55 leak, stock needle with clip in middle position @4500 altitude in northern CAL. Also installed POWER NOW + system and a TWIN AIR filter and cage. Runs really good. No valve issues after a year of trails and logging roads. I just checked them, right on the money. I bought it in RENO Nevada so is the 49 state version. Before it rained this fall I was experiencing the dirt in the carb problem. Not sure what to do about it this coming this summer when its dusty again. Maybe buy CRF450X

[Heckler]

Thanks Odave I will start at those settings... ?