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  1. J

    1982 50hp merc carb and timing adjustments

    my 82 50 hp 4cyl merc started running bad last year cleaned carb bettrer but by adjusting mixture screws i can either get it to start good ( no choke), idle good, or have power in gear. never two at a time. can someone tell proper adj procedure and would advancing timing help being the reason...
  2. J

    1982 merc 50hp starts great. no power.

    i have cleaned carbs,tested comp(all within 10%) no misses,all spark good and strong. ever with no load eng seems a bit rough and under load no power. i am auto mech and worked on boats 15yrs ago. and remember none of it. can timing or a crank seal between cyls or reeds give cause this? thanks...
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