1985 OMC 65, 100 and 155 HP Models Commercial Service Repair manual, PN 507450-D, Page 67Get this manual

1985 OMC 65, 100 and 155 HP Models Commercial Service Repair manual, PN 507450-D, Page 67

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4 To adjust, stop the engine and loosen the spark advance lever screwI nsert tip of screwdriver between notches of lever and powerhead Twist the screwdriver and move the lever5 Tighten the spark advan

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