Aug 8, 2019 · I guess it depends on the mod levels as my relatively stock CRF250X seems to respond best with a #142 main jet. 220ft elevation, 70°F ambiant temps. CRF250R 13.2:1 …

Feb 23, 2013 · The CRF250X is a fantastic, all-around, swiss-army knife bike for trail riding (especially once I changed the gearing out for 13/48). It's a bit heavy, especially if you add …

Jan 20, 2025 · You'll find the number one complaint of past / current CRF250X owners is usually the lack of a 6th gear. Stock suspension is a toss-up, spring rates are optimal for a 160lbs …

Aug 14, 2004 · CRF250X - CA model - Elevation from 0 ft. to over 9000 ft. - NCYR needle in the 4th clip position - 160 main - 42 pilot - Air box lid cut to honda recommended line - Pink wire …

Jul 1, 2015 · I think the tank size varies slightly between years. My 2006 has the 2.6 gal tank. I have typically gotten about 40mpg riding single track, so I figure about 105 mile range.

Jul 5, 2013 · The CRF250X has mounting tabs on the right radiator for a cooling fan. Some riders say the "optional" fan is unnecessary. However, I discovered if you are climbing 5,000 feet of …

Dec 31, 2008 · Just wondering what high comp piston I should chuck in my '08 CRF250X. I have no idea what the best is. I'm looking to move power to the top end as thats what I'm used to …

Feb 2, 2018 · The early model heads are interchangeable thru any model year CRF250X but later model ones have an emissions device (PAIR valve) so a small port must be blocked off …

Jun 24, 2019 · I ride in Tight twisty trails on hills with lots of rocks. So I put a Radiator fan on the 250X.It turns on at 185F and turns of below 185F or the engine is stopped. There is a …

Aug 27, 2007 · I agree with PDX Munkle. The Dr. D pipe with the low boy header & the quiet insert is the perfect 250X pipe. . The longer header provides better low-mid range, and the …