Trouble with seadoo challenger 180

[patsa12]

Any thoughts on what may be wrong??
We have a 2009 challenger with only 50 hours on it. It is having trouble getting to top speed, takes a lot longer and when u push throttle ahead it revs really high, so we have to go really slowly now to get to top speed... any thoughts? thanks.

 

[Dr Honda]

if it's reving up, but not going.... you have cavitation.

Start with checking the impeller, and wear ring. You will need to remove the pump for a good inspection. (You may also find something stuck in there)

If that's OK... change the carbon seal on the drive shaft.



FYI... you have a 4-stroke boat, so the question should be in that section. BUT since cavitation is universal... I'll leave it here.