Tohatsu 4 Stroke MFS 2/2.5/3.5A Outboards Service Manual, Page 134Get this manual

33) Filling with Gear Oil 1Feed gear oil to specified quantity 2"Refer to Chapter Perform "Inspection of Gear Case (Leakage)" in Chapter if necessary

3 Gasket
Do not reuse

• ATV
• Jet Ski
• Outboard Motors
• Personal Watercraft
• Snowmobiles
• Stern Drives