1987-1993 Mercury Mariner Outboards 70/75/80/90/100/115HP 3 and 4-cylinder Factory Service Manual, Page 62Get this manual

1987-1993 Mercury Mariner Outboards 70/75/80/90/100/115HP 3 and 4-cylinder Factory Service Manual, Page 62

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11 Holding throttle arm against throttle stop screw, adjust cam follower, so that clearance of 0.005 in- 0.020 in(0.1270.508 mm) exists between roller of cam follower and throttle camTighten set screw