Mercury Mariner 25HP 4-Stroke Outboard Service Manual 1997, Page 155Get this manual

Mercury Mariner 25HP 4-Stroke Outboard Service Manual 1997, Page 155

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Oil Filter, Thermostat, and Exhaust Cover Removal 1 Remove oil filter by turning counterclockwise as shown
2 Remove thermostat cover bolts Separate thermostat and cover from cylinder block