If you own an outboard engine, chances are sooner or later you'll need a new water pump impeller. And the chances are also good that it'll come sooner—not later. To see how this job gets done by a pro, we visited Norfolk Marine and had Yamaha Master Tech Chris Breeden take us through the process.



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Other how-tos:

How to use a VHF radio

How to apply Kiwi Grip NonSkid paint to a boat deck

How to change engine oil on a four-stroke outboard

How to change the thermostat on an outboard engine

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