1987-1993 Mercury Mariner Outboards 70/75/80/90/100/115HP 3 and 4-cylinder Factory Service Manual, Page 10Get this manual

1987-1993 Mercury Mariner Outboards 70/75/80/90/100/115HP 3 and 4-cylinder Factory Service Manual, Page 10

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Checking Trim System Fluid Level IMPORTANT: This trim system is pressurizedRemove fill screw (b) when outboard is trimmed to the full "up" positionRetighten fill screw securely1 Trim outboard to full