Folks: Will have this sticky up top so you can add Jetting settings you have for your R or X. Please keep it to that, no off-side discussions. Want to keep this post for jetting info for folks so they dont have to dig through a bunch of discussion to get to what is working for us and where/how we ride.! Thanx! CRF-250X Sea-level to about 2000' Western Washington tight single track Temps so far= 50 to mid 90s Mods: Air box lid cut to honda recommended line Pink wire cut JD Jetting kit Red needle, 3d clip from the top 150 main 42 Pilot 2 full turns on the fuel screw. PowerNow in carb Backfire screen still in Twin air and stock filter with No-Toil filter oil from http://Shop.thumpertalk.com Totally Stock Exhaust Pump gas (92 octane) fresh each ride. Very happy.....front end comes up with a twist even with my fat butt on it. Bike loves to run lean I have found out.