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Dirt Bike Brands - Other
XR200 Won't Idle
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[QUOTE="Jon K., post: 655153, member: 22460"] Keith; Crank it up and spray some WD-40 on the manifold crack. If it is sucking air; the WD will dramaticaly change the way if runs. Before you try to re-jet or tweak it in any way; check the intake valve clearance. A tight valve will cause all manner of grief. .002 clearance. The white chalky stuff is aluminum oxide; probably the carb had a bit of water in it over the winter. Nasty stuff; you must get it all out. Something that is easy to miss on the XR200 carb are the air passages in the back of the bore. This air passage leads to the idle jet, and if it is clogged, absolutely no fuel will pass through the jet. Look into the rear of the carb; the idle air passage is the one on the lower left. The one in the center is the main air passage; but from the sounds of things that one should be OK. With the idle jet and fuel screw (in the bottom of the carb) removed; spray some carb cleaner (watch your eyes) into the threaded area that the idle jet just came out of. The spray should come out in the bore of the carb, the fuel adjustment screw hole, and the air passage in the back of the carb. Sometimes it works better to spray into the fuel screw hole. But basically there are four exits for the fuel in the idle passage. Three out of four will not work. A wear item on the XR200 is the needle jet (the one that the metering needle works in, not the float needle). They come in a set with a new needle and jet. On an '86 model I think I would change the needle and needle jet regardless. Please keep us posted! :) [/QUOTE]
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Dirt Bike Brands - Other
XR200 Won't Idle
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