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 piston, stock X cam 2"x4" hole in top of airbox (under the battery) Twin Air filter with stock backfire screen stock muffler but spark arrestor gutted (by previous owner)

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 protection, but for the year (mine's a 2006), finding parts is extremely easy as Honda did very few changes between the years of 2004-2017.

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 rider but the valving not particularly great, too stiff for low speed technical stuff and, too soft for faster paced or 'MX' style riding/jumping.

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 relocated to money_pit Posted August 19, 2004

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 steep terrain, in summer, in the Rocky Mountains, you certainly do need the "optional" fan. The Honda Cooling Fan Set i...

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 having ridden mostly 2t and my last 4t which had the power in the top end but i'm under the assumption a performance piston is across the board.

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 (common mod, search 'CRF250X block off kit'). 2004-09 CRF250R cylinder heads also interchange and are sometimes preferred for better flow characteristics.

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 connector under the gas tank that is for the Honda Kit. I did not use the …

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 large diameter muffler and mid-pipe allow the engine to breathe for much improved top