It could be most likely that the pilot circut is lean, turn the fuel mixture needle in. If the mixture is within spec's then it may be a intake leak or pluged pilot jet. Check for intake leak by spraying carb cleaner around base of carb or also engine base (with engine running) and note if idle increases dramaticly. If idle increases then intake leak, if not then polet jet and or needle adjustment. If it is twin carbed then maybe carbs out of sync. also. hope I helped.goingmach_1 said:I have a '97 503 that when you stop and idle after driving, the idle is quite high, then after a minute or two it falls back to normal.
I am having a bit of problem trying to adjust this out.
Does anybody have any ideas on this problem?