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  1. 1

    Proper starting procedure 1971 mercury 800?

    Many posts on starting, but none seem to pertain to the older 4cyl models. Im trying to start a 1971 mercury 800 80hp 4 cyl thunderbolt ignition. My control box does not have the ability to push in the key to activate an enrichener. I dont think my engine even has an enrichener. The guy I...
  2. 1

    Thread pitch mercury 10-22040 bolt. 1971 mercury 800 front plate to bottom cowl?

    Still working on re assembling a 1971 mercury 800. Front support plate to bottom cowl didnt have any bolts. Ive searched it to be mercury 10-22040, but no where can I find a thread pitch. Surely its an available bolt?
  3. 1

    Stuck carb screws 1971 mercury 800

    Hi all. I searched. Im rebuilding the twin side bowl carbs on a mercury 80hp 1971. It ran well last year but was hard to start. I figured it was fuel plumbing issues. This year it wouldnt start at all. So, after some diagnosis, the carbs are plugged so bad that fuel just isnt flowing through...
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