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  1. #1
    Cadet
    Join Date
    Feb 2010
    Posts
    4

    Default force 9.9 hp how much gear case oil is require to fill?

    as the title suggests, its an early 90's force 9.9,
    do you fill the oil from the drain till it comes out of the vent?
    or is this the wrong way for this type of outboard?

  2. #2
    Supreme Mariner roscoe's Avatar
    Join Date
    Oct 2002
    Location
    Medford WI
    Posts
    17,219

    Default Re: force 9.9 hp how much gear case oil is require to fill?

    Yes fill from the bottom, forcing the air out the top, requires 5 ounces of lube.

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