Mercury 225 Manual page 106

Gearcases with 31.75 mm (1‑1/4 in.) diameter propeller shaft
‑ 760 ml (25.7 fl oz)
GEARCASE LUBRICANT RECOMMENDATION
Mercury or Quicksilver High Performance Gear Lubricant.
CHECKING LUBRICANT LEVEL AND REFILLING
GEARCASE
1. Place outboard in a vertical operating position.
2. Remove vent plug/sealing washer.
3. Remove fill/drain plug. Place lubricant tube into the fill hole
and add lubricant until it appears at the vent hole.
a - Vent hole
b - Fill hole
IMPORTANT: Replace sealing washers if damaged.
4. Stop adding lubricant. Install the vent plug and sealing
washer before removing the lubricant tube.
5. Remove lubricant tube and reinstall cleaned fill/drain plug
and sealing washer.
MAINTENANCE
a
94
b
22693
eng