Mercury Mariner 30/40 4-Stroke Outboard Service Manual 1998, Page 17Get this manual

Mercury Mariner 30/40 4-Stroke Outboard Service Manual 1998, Page 17

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MAINTENANCE
1 Replace water pump impeller (more often if overheati ng occurs or reduced water pressure is noted)
Before Periods of Storage
1 Refer to Storage proced ure (this section