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thadley01 · 09-08-2010, 09:25 PM

I have a 4.3 with OMC outdrive, boat has set up for a while. Picked it up real cheap, previous owner had now mech ability at all. Little work motor runs like a top. Replaced water pump on outdrive and replaced oil, bellow tubes and all gaskets. Ran great first time out. This past weekend took off great, ran 20 minutes and rpm's began to rise then no thrust. Rpm's shot up, boat wouldnt move. Let cool down and would go at idle speed but nothing more. Any help would be appreciated.

09-08-2010, 09:25 PM	#1
thadley01 Senior Member Trigger Join Date: Feb 2009 Posts: 227	4.3 W/ OMC outdrive problems I have a 4.3 with OMC outdrive, boat has set up for a while. Picked it up real cheap, previous owner had now mech ability at all. Little work motor runs like a top. Replaced water pump on outdrive and replaced oil, bellow tubes and all gaskets. Ran great first time out. This past weekend took off great, ran 20 minutes and rpm's began to rise then no thrust. Rpm's shot up, boat wouldnt move. Let cool down and would go at idle speed but nothing more. Any help would be appreciated.