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Idling Problem=Throttle Overun Valve Valve? 120-130

uid 4846's pic
posted by  JohnMc on  Wed Jan 7 02:34 CST 2009
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last visit: Thu Oct 23 07:42 CST 2014
[RELATED]

My own experience with 'experienced' SU's is that when the throttle shafts get a little worn, the valves can occasionally hang on the bore and stick the throttle slightly open. You can usually unhang them by giving the throttle a quick blip. Rebushing is the only thing that really fixes it.

You can check for worn throttle shaft/carb body by grabbing either side of the throttle shaft on the carb and gently wiggling it. Any noticeable slack at all is a problem.
--
'63 PV544 rat rod, '93 Classic #1141 245 +t






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