1993 gtx cavitation

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    1993 GTX Cavitation, loss of propulsion, but good engine power

    I have a 93 GTX. I'm new to jetski mechanics, but am very familiar with mechanics and motorcycles. I just bought this ride and got it running. Compression is 125-126 both cylinders. no oil leaks, fresh gas. Motor runs/idles great. Throttles up great (don't have tach so no RPM reading). Test...