1995 Mariner Mercury Outboards Service Manual 50HP 4-Stroke, Page 60Get this manual

1995 Mariner Mercury Outboards Service Manual 50HP 4-Stroke, Page 60

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Idle Mixture Screw Adjustment NOTE: Idle mixture screw adjustment is required when;
1 Screw in pilot screws #1-#4 until they are lightly seated2 Back idle mixture screws out 2.5 turns