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    Are Force 70/90 crank cases interchangeable?

    Thanks, I guess that’s my plan scuppered 😂👍
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    Are Force 70/90 crank cases interchangeable?

    I have a tired Force 90 (triple carb) mounted up to an inboard SportJet and I’ve just acquired a very tidy Force 70 (single carb) . My question is are these blocks line bored or can the front/intake side be swapped? I’d like to use the crank, piston and cylinders from the 70 but the intake side...
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    1994 Force / Mercury SportJet Jet Drive oil Change

    Bingo! It’s behind the grate.
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    1994 Force / Mercury SportJet Jet Drive oil Change

    Hi, I have a 1994 90ho Force/Mercury sport jet (in-board) and I'm struggling to change the jet drive oil. I have located the drain plug but I can't locate a fill/vent plug, there is a threaded plug with a female hex that I think might be the vent/fill but it looks like got red loctite on it...
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