2003 400ex idling problems
#1
2003 400ex idling problems
I have a 2003 400 ex with white brothers pipe high performance cdi box and stage 2 cam staock carb with 168 main jet. It will idle fine cold but once it is ridden for a little while it idles between like 1500 and 2000 rpms. is their an adjustment on this carb to fix that?
#2
#3
#4
2003 400ex idling problems
The mixture screw may be ok where it is, but it sounds like the idle speed setting may be a bit high, or the clamps holding the carb may have loosened up, and now youve got a air leak, which raises the rpms.
Check to make sure the carb clamps are still tight. Then try backing the idle screw out a bit.
Check to make sure the carb clamps are still tight. Then try backing the idle screw out a bit.
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