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Honda 20 hp overheating

Posted: Sun Oct 26, 2014 2:29 am
by onremlop
My motor has been overheating after running for about 10 minutes. I have it in the slip and have flushed Salta
way through the intakes and the water coming out of the p hole is warm, not hot, so I think the impeller is fine. Any advice or ideas?

Re: Honda 20 hp overheating

Posted: Sun Oct 26, 2014 11:21 am
by Ron
Is the stream of water out of the P hole reasonably strong? Or is it just dripping? How's the oil level when the motor is vertical?

Re: Honda 20 hp overheating

Posted: Mon Oct 27, 2014 2:10 am
by onremlop
P is strong and not hot. Oil seems to be fine.

Re: Honda 20 hp overheating

Posted: Mon Oct 27, 2014 11:30 am
by Ron
You mentioned that you ran salt-away thru the intake. Have you hooked a garden hose up to the flush out port near the top of the motor? 50 psi or more of water pressure may free up any blockage inside. I tend to do this after every sail. I usually wind up with a higher flow out of the P hole when I re-start it the next day.

Re: Honda 20 hp overheating

Posted: Fri Oct 31, 2014 1:39 am
by onremlop
I ran saltaway through both a couple times but still is overheating.