How do I know if I need to replace my impeller?
Inspect for signs of leakage around the pump housing – if you see leakage there, it’s time for replacement. Many boating experts recommend replacing the impeller once a year no matter what, as a notable amount of wear can still occur, but not be enough to cause the telltale leak.
How often should water impeller be replaced?
At a minimum, you should replace your impeller according to your manual – for example, every 200 hours. Over time, the vanes become rigid and work less effectively, and you may see your engine overheating.
How often should you replace water pump on Yamaha outboard?
Changing the water pump on your outboard motor is an important part of your boat’s regular maintenance. You should change your water pump every 200 hours, roughly once every two years or every other 100-hour service.