How To Change an Outboard Engine Water Pump Impeller

For more how to videos, visit . 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. Some manufacturers, like Yamaha, recommend that you inspect the impeller every year and replace it every two to three seasons. To see how this job gets done by a pro, we visited Norfolk Marine and had Yamaha Master