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  1. #1

    Join Date
    May 2011
    lakewood oh

    97 seadoo gtx 787 cylinders full of oil

    hey guys, lookin for some help. i have a 97 gtx 787 that i pulled plugs and found both cylinders are ful of oil and shooting out when plugs are out. i have built a few polaris, yamaha, and kawasaki engines but have not really played to much inside the seadoo engines. any ideas to start looking at or a direction to look in would help. is there any common issues like this? thanks alot for your help!

  2. #2
    I have a 96 gsx with a 787. same problem. the way I understand it, the main crank seals are leaking. now if its not bad it will only leak in over long peiods of time..

    like over the winter. mine had a vent problem with the tank also. mark the tank and wait a week

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