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  1. #1

    Jet Pump service 1991 Wave III

    What type of lubricant should I put in the jet pump of a 1991 Waverunner III? Whatever is in there now looks like grease and not oil.

    Thanks for responding!!

  2. #2
    Adam's Avatar
    Join Date
    Aug 2005
    Yamaha's run a waterproof type of grease. Any good quality marine grease should be okay.

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