2003+ Mercury Mariner 225 HP EFI 4-Stroke Service Manual, Page 40Get this manual

2003+ Mercury Mariner 225 HP EFI 4-Stroke Service Manual, Page 40

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MAINTENANCE
Changing Lubricant
1 Tilt the outboard motor up slightly2 Place drain pan below outboard3 Remove vent plug and filldrain plug and drain lubricant
NOTE: When changing gear