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Dirt Bike Brands - Other
XR carb setup?
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[QUOTE="x-ray Jeff, post: 17873, member: 21670"] The mixture screw and pilot jet controls the way the bike runs at idle to about 1/8 throttle. Standard screw setting on almost all bikes is 1.5 turns out. If you have to make huge adjustments with the mixture screw, you need a richer or leaner pilot jet. If the needle is bent, yes it must be replaced and maybe the needle jet to be on the safe side. The main most likely isn't hurt. The needle jet is the one that the needle travles through. If the needle was bent badly, it might rub on the needle jet itself. When you say "float needle" are you refering to the valve that shuts off the fuel to the float bowl, it is loacted when you remove the float assy. If you suspect it is not cutting off the fuel supply then replace it. It could be that the float is incorrectly set as you said. It is normally an item that doesn't get replaced...I have original carb. and all parts to it in a '77 Triumph 750 and the bike runs perfect. Has the exhaust system been tampered with??? Hang in there....... [/QUOTE]
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Dirt Bike Discussions By Brand
Dirt Bike Brands - Other
XR carb setup?
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