Dec 8, 2025 · This is the spot to talk about the Yamaha WR250F, YZ250F, & YZ250FX. Find new & used WR250F and YZ250F/FX motorcycles & parts for sale, motorcycle reviews, and …

This is a basic copy from the 450 forum but thought it would be useful to us. Please post your jetting specs. Sunruh, can you make this a sticky? Model (YZ or WR 250F): Timing (WR-YZ): …

Mar 30, 2011 · I'm looking to pick up a WR250F. Used is cool, as it will be a play bike, I won't be racing it. Any years better than others ? Any to avoid if possible ? Can someone bring me up …

So I'm checking the valves on my 2009 YZ250F today. Everything was going smoothly until I went to set everything at TDC. I lined up the dots on the cam sprockets level with the head and …

2008 YZ250F Stock jetting dies on throttle blip. Added and adjusted fuel screw, installed accell pump cover... no change. Manual gives no clear indication of which way jetting needs to go. …

Hi there everyone, I have a. Yz250f 2018 I am a motorcycle mechanic and this bike came in for full top end I put brand new cylinder piston rings timing chain and all gaskets required the bike …

All Activity Home Forums Dirt Bikes Make / Model Specific Yamaha Motorcycles WR250F/YZ250F/YZ250FX throttle position sensor readings Facebook Twitter Youtube …

All Activity Home Forums Dirt Bikes Make / Model Specific Yamaha Motorcycles WR250F/YZ250F/YZ250FX High compression piston kit vs. Big bore kit Facebook Twitter …

Jul 23, 2009 · I know my 2004 YZ250F head pipe tubing outer diameter is about 1.5" (38mm). I'm curious if that is the common size for all brands of 250F? And a 2003 YZ450 is about 1.75" …

what are you finding is the best sag setting, I am 175 lbs, and ride mx only, have it set at 97mm right now just wondered what others are finding what works best as this is my first 4 stroke, …