1995 Mariner Mercury Outboards Service Manual 50HP 4-Stroke, Page 21Get this manual

1995 Mariner Mercury Outboards Service Manual 50HP 4-Stroke, Page 21

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SUBMERGED ENGINE (FRESH WATER) (PLUS SPECIAL INSTRUCTIONS)
1 Select propeller that will allow the engine to operate at or near the top of the recommended full throttle RPM range (listed in "Spec