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Yamaha 242 Limited S loss of power

biffdotorg

Jetboaters Admiral
Messages
3,325
Reaction score
3,644
Points
357
Location
Pelican Rapids, MN
Boat Make
Yamaha
Year
2011
Boat Model
Limited S
Boat Length
24
One shot of sand is not going to wear an impeller that much. That being said, if it is out of spec now, it doesn't matter how it happened, it needs to be addressed to get rid of cavitation.

Did the mechanic recommend an impeller, wear ring, or both? There is no arguing a measurement. If it's out of spec, it's out of spec and a place to start.

When we used to pull waverunners off a sandbar, or whenever they sat anchored, we always lifted and dropped the stern to pump water through the jet pump to flush out sand and weeds before firing up. We don't really have that option on a 24ft boat. But just pushing it out away from a sandbar or beach would push some water through the pumps and flush loose sand for sure.

Good luck!
 

TomTom

Well-Known Member
Messages
3
Reaction score
0
Points
45
Location
New York
Boat Make
Yamaha
Year
2016
Boat Model
SX
Boat Length
24
I did not take it to the mechanic yet. I want to see how the impeller looks and the wear ring. If it looks bad I know what it is at least. Hitting 7k RPM and only going 12mph is not normal the only thing that comes to my mind what is could be is the impeller and the wear ring.
 
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