starting or idling

  1. L

    Poor starting/idling in morning especially when cold

    Hi all, Merc 190 carb 1987 In the morning when I start the car it sounds like it's only firing on 3 plugs, then after a minute or so settles down and seems to tick over at about 6-800 rpm. When I knock it into drive and set off it again sounds like its running on 3 plugs but settles down...
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