aero3113 Posted June 17, 2009 Report Posted June 17, 2009 (edited) I have a 1983 21 foot Regal with a Mercruiser 470. At Idle and slow cruse the RPM's seem to surge up and down slightly, but at cruse speed all is good. What do you guys think the problem could be? Edited February 25, 2011 by aero3113 Quote
cwcars88 Posted June 17, 2009 Report Posted June 17, 2009 Float level might be to high and is spilling over, at higher rpm you may be using enough fuel that this does'nt happen. just a thought. Quote
Rumble1960 Posted June 18, 2009 Report Posted June 18, 2009 sounds like it's time for the carb to come off for a cleaning. The low speed circuit sounds like it's partially plugged. You might want to freshen up spark plugs, dist cap, points, wires etc. if it's been a while. Quote
aero3113 Posted June 18, 2009 Author Report Posted June 18, 2009 Rotor, Cap and plugs were done last season. Do you think I can spray some carb cleaner down the carb? This is done at at idle right? Quote
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