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  1. #1

    Join Date
    Jul 2013
    Location
    Fernandina Beach, FL
    Posts
    3

    Help with jetting!

    Hello everyone I have a 1999 Seadoo spx and I was wondering what size jets i need for adding Prok flame arrestors?


  2. #2

    Join Date
    May 2014
    Location
    Arlington tx
    Posts
    59
    Stock is 140 mag 142.5 pto fully closed so should be able to just open them up and do plug chop and use rpm to dial them in

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