Hey Guy's,My Stbd engine is idling about 1500 r.p.m's when i take it out of gear and it stays that way till i shut it down and let it sit for about 5 mintues.My boat and engines only have 210 original hours on them and Ive checked the throttle linkage and there's nothing binding or sticking.Any ideas??Hank36

Checked for any vacuum leaks?

Thanks 29 scarab will do.Hank36

Please check the throttle bodies for any cracks.

Thanks Jeff,Will do.Hank36

Could be your IAC motor. When they get build up sometimes it takes a minute for them to reset themselves.

525 sc are carborated blower motors.