Posted April 4, 200915 yr 78 xs400. Idle hangs at 4000 or so when coming to a stop....slowly falls but still hangs. Any ideas.
April 4, 200915 yr Author You have an air leak at the carb or manifold or vacuum line. started it up and now i cant get the idle down at all no matter the position of the idle adjustment screw.
April 5, 200915 yr Check the easy things first. Unhook the throttle cable and check for smooth/unrestricted movement. Lube it with light oil at this time. Check for proper routing as well. Make sure your carb slide moves up and down with out getting stuck. Stick your finger in there and move it and make sure it returns all the way down.
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