Heckler My Ride Posted December 3, 2004 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) Share this post Link to post Share on other sites
Odave Posted December 4, 2004 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 Share this post Link to post Share on other sites
Heckler My Ride Posted December 4, 2004 Thanks Odave I will start at those settings... 😢 Share this post Link to post Share on other sites
