Apr 16, 2008 · This is a question that gets asked often but there's never really been a comprehensive reference for the info. The info here applies to hubs from any YZ model used …

Aug 8, 2017 · The YZ250 is known for its lean spot at 3/8 throttle which is the needle. If you tune away the 3/8 lean spot and all its erratic surging etc. everything after that gets to rich and …

Mar 5, 2025 · I have a few factory YZ250 and YZ250X and i do no see anything about using 37ftlb upward pressure. I just have the bike on stand and set it to 52mm and never had a problem.

Jun 28, 2014 · Does anyone know a good resource that gives the compatibility of the YZ250 between the different years of this bike for parts. I have a 2007 that needs alot of odds and …

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The keihin on the modern yz250 is a blessing compared to that hellish contraption from mikuni. Ooh yeah definitely. They are just selling products and making money. And yeah, those mikuni …

Picked up a 2016 yz250 3 weeks ago and now has 6 hours on it now. First ride out was at 20:1 break in procedure per manual. Next ride out was a track day 2 weekends ago and bike ran …

His bike - 2003 yz250 -Reed spacer removed. The test bike - 2008 yz250, for install I left the reed spacer installed. Surprise surprise it fit just fine. The bike has the OEM ti spring - surprise …

Dec 26, 2024 · Hello, I’m new to the Forum. I’ve seen a couple posts about older YZs that got converted into new gen YZs but haven’t found anything about somebody who converted a new …

Apr 25, 2013 · I am obviously confused and wondered if you guys could help me in ID'ing the bike properly model/year and also if you could break down the differences in the YZ250, …