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98 speedster Cavitating

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Jayc1231

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I have a 98 speedster with the twin 85hp engines....I've had it for 3 years now and it's always given me trouble with "digging in"...I had my local seadoo dealership change the wear rings and put in new impellers....but it just doesn't seem to help....if I have 3 or 4 people in the boat it'll come up on plane fine....but if it's just me and the wife we both need to stand in the front and stretch to hold the steering wheel....engines both run strong and once it's up it runs great.....something has got to be wrong...engines will rev up at 7000 if I let them but just won't grab...any thoughts??
 
The carbon seals are most likely leaking.

OR...

The seal around the pump isn't sealing. (but lets at least hope the shop who did the impellers and rings sealed it properly)


FYI... I'll move it to the boat section.
 
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