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    Fuel additive for 99' Johnson 90 hp

    I just purchased a boat with a 1999 90 hp Johnson outboard. The tank is 40 gallons and is full, however it has been sitting since last season. Is there an additive that I should put in the fuel since it has been sitting without use. Thanks.
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    1999 Johnson 90 hp

    I just purchased a 18' boat w/99' Johnson 90 hp outboard. I have no manuals and new to boating. Where can I order a manual? What octane gas should I use? Does gas have to be mixed? Thanks
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    compression test on 1999 Johnson 90 hp

    What is the best way to check compression on a 99' Johnson 90 hp.
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    1999 Johnson 90 hp

    I am buying a boat with a 1999 Johnson 90 hp. What compression should I have at the cylinders. What common problems should I look for. Thx.
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