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Dirt Bike Brands - Other
WR250F Missing a little :/
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[QUOTE="vetwfo'er, post: 141251, member: 21011"] [b]Go SLOW![/b] Do NOT make multiple jetting changes at one time. First try opening the fuel screw 1/4 turn at a time. First screw it in and count how many turns out it is. Then return to the starting point and turn it out. Write down every change you make. If you get out to 2.75 turns, you may want to go up one on the pilot jet. When you do, return the fuel screw to 1.25 turns out. Once it starts easy and does not pop on decelleration, then and only then, move to the main jet. For throttel transition changes 1/8 to 1/2, try moving the clip on the neddle dwon on clip at a time. Don't forget to keep records of changes and again, only one change at a time. Do not remove the throttle stop, for reasons already mentioned. Go to ThumperTalk.com and get the proper length to trim it to or buy the YZ stop. If you haven' trimmed the stop, your only riding the bike at appx. 5/8 throttle. If your buddy got your valve timing corrected, he may ne able to get you back to YZ. Give it a shot. vetwfo'er [/QUOTE]
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Dirt Bike Discussions By Brand
Dirt Bike Brands - Other
WR250F Missing a little :/
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