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  1. J

    Merc 7.5 Power Loss

    I have a 1982? (s/n 5816301) 7.5 hp Merc that went swimming last summer. It was running went it went in and spent about 5 minutes underwater. We pulled it out and got it running right away. It starts and Idles fine but at about 3/4 throttle it starts to sputter and will not come up to speed...
  2. J

    Merc 7.5 to 9.8 hp upgrade

    What is the difference between a 1982 merc 7.5hp and the 9.8hp? The only difference I can find is the carb housing and main jet(.039 on the 9.8 and .040 on the 7.5). Can it be "upgraded" with a carb change or just the main jet?
  3. J

    7.5 hp Merc high speed problem

    I have a 1982? (s/n 5816301) 7.5 hp Merc that went swimming last summer. It was running went it went in and spent about 5 minutes underwater. We pulled it out and got it running right away. At about 3/4 throttle it starts to sputter and will not come up to speed. Plugs have been changed, a...
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