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Everything Dirt Bike
Make / Model Specific
Yamaha
2001 WR250F problems
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<blockquote data-quote="MY-BLUE-BEAST" data-source="post: 140400" data-attributes="member: 388"><p>I am working on a friends 2001 WR250F getting it running and such. I got the bike to start and it starts on the first kick, idles great, and the low end is awesome. Then there is the dreaded BOG when I go to snap the throttle. I know I can figure it out if I had the time to work on it, but I am leaving town tonight for the weekend (good thing he is gone for the weekend to so no rush <img src="https://www.dirtbikeaddicts.com/static/images/smilies/smirk.gif" class="smilie" loading="lazy" alt=":smirk:" title="Smirk :smirk:" data-shortname=":smirk:" />) and would like to here suggestions on what's what. Here is the set up:</p><p> </p><p>Main 175</p><p>Pilot 50</p><p>Needle 3rd from top</p><p>Leak 40</p><p>throttle cable has a perfect snap to it</p><p>TPS is unplugged (I tried it plugged in)</p><p>Air Cut Off Valve Jet is 100</p><p>All free mods</p><p>Grey Wire is unplugged (tried that plugged in to)</p><p>New Gas 91 Octane</p><p>New spark Plug (according to him, maybe I should check)</p><p>And he had the valves adjusted at a shop about a year ago</p><p> </p><p>Not sure what is going on with it, its all clean and starts easy just doesn't want to ride and almost dies when the throttle snaps. Am I missing something? Is there a trick to these older WRs?</p><p> </p><p>Ill figure it out eventually but I would love to here what you think.</p><p> </p><p>Thanks <img src="https://www.dirtbikeaddicts.com/static/images/smilies/thumb.gif" class="smilie" loading="lazy" alt=":thumb:" title="Thumb :thumb:" data-shortname=":thumb:" /></p></blockquote><p></p>
[QUOTE="MY-BLUE-BEAST, post: 140400, member: 388"] I am working on a friends 2001 WR250F getting it running and such. I got the bike to start and it starts on the first kick, idles great, and the low end is awesome. Then there is the dreaded BOG when I go to snap the throttle. I know I can figure it out if I had the time to work on it, but I am leaving town tonight for the weekend (good thing he is gone for the weekend to so no rush :smirk:) and would like to here suggestions on what's what. Here is the set up: Main 175 Pilot 50 Needle 3rd from top Leak 40 throttle cable has a perfect snap to it TPS is unplugged (I tried it plugged in) Air Cut Off Valve Jet is 100 All free mods Grey Wire is unplugged (tried that plugged in to) New Gas 91 Octane New spark Plug (according to him, maybe I should check) And he had the valves adjusted at a shop about a year ago Not sure what is going on with it, its all clean and starts easy just doesn't want to ride and almost dies when the throttle snaps. Am I missing something? Is there a trick to these older WRs? Ill figure it out eventually but I would love to here what you think. Thanks :thumb: [/QUOTE]
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Everything Dirt Bike
Make / Model Specific
Yamaha
2001 WR250F problems
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