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Posting a reply to: Re: Yamaha 4 stroke water pump ?

Muskie Fishing -> Muskie Boats and Motors

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jerkin

Posted 10/1/2007 12:39 PM (#277484 - in reply to #277478)
Subject: Re: Yamaha 4 stroke water pump ?

Posts: 226

Location: W. PA.

I changed mine last year and haven't heard any squealing before or after. Also didn't see any bearing while I was in there. the pump was like every other one I ever did, just a rubber impeller that slips over the driveshaft.

I do know of a plastic bushing below the powerhead that causes some squealing. You can drop your lower unit and grease the upper part of the driveshaft to make it go away.