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  1. M

    1986 Merc Black Max (No Power Under Load)

    Fellow boaters Good Day. I have a 1986 Mercury Black Max that is having a frustrating problem. Motor runs fine at idle/high idle. When under load however it runs rough wont top 2000 rpm at full throttle and seems to be hunting or surging like its trying to rev up. I can take it to the lake in...
  2. M

    whoops "Mercury 150 HP Black Max"

    Soory there it is a Mercury 150 HP Black Max that Boggs down out of the hole..<br /><br />Melton.
  3. M

    1986 Mercury Boggs down "out of the hole"

    Hey there.<br /><br />I just Boughta used Champion Bass boat with a 1986 Mercury Black Max. Took it out for the first time and had this problem. Engine started fine then after warm up went to full throttle and engine boggs down. At full throttle boat will not come out of the hole. Then after a...
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