Mercury Sportjet 120 Problems - Anyone Familiar With These?
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Mercury Sportjet 120 Problems - Anyone Familiar With These?
A friend of mine has a little Checkmate Jetboat with the Mercury Sportjet 120. The boat starts and runs fine, but wont get on plane, the engine just starts to rev. Anyone had this problem or have any suggestions. Several people have looked at it with no luck.
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for jet skis in general, if the seal around the shaft is bad it allows air in front of the impeller which causes cavitation. May or may not be leaking inside.