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  1. P

    3.0 mercruiser i/o

    I have installed a shut off valve on the gas line to stop carb clogging when not used for a while. Carb is rebuilt. My question is should I install a bulb or is it fine to just start up. Don't want to damage fuel pump. Any advice is welcome.
  2. P

    Mixture adjustment screw non tamper cover

    I have a 3.0 mercrusier with a 2bbl carb. This cover does move but won't come off to adjust I just see something but not a screw. Any suggestions
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