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  1. M

    1983 black max 150 running poor

    So my problem is fixed, When I did the spark check the lowest 2 cylinders seemed to make no difference. So I double checked the fuel pump as suggested and found I had a corner that was tucked in and was not sealing, she’s running great now!! 52mph with a 19” aluminum prop, definitely need a 21...
  2. M

    1983 black max 150 running poor

    And I’ll post a picture of the spark plugs
  3. M

    1983 black max 150 running poor

    I heard that can damage the switch box’s, dose doing it briefly not harm them that much
  4. M

    1983 black max 150 running poor

    So I recently went and purchased a 1983 merc 150. Did what I thought was good enough check over before buying it, compression was good 120-125psi every hole it showed good blue spark on all 6 plugs. The previous owner said it started running bad one day so they took it to a shop and had stator...
  5. M

    1970? Mercury 1150 PARTS!!!

    If somebody could help me locate a lower unit for my 1970 mercury 1150 it would be greatly appreciated. the previous owner took it off and never got around to putting it back on then lost it. So as every body knows you don't go anywhere without that. So I need to know if I can go on eBay and...
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