Tohatsu 4 Stroke MFS 2/2.5/3.5A Outboards Service Manual, Page 88Get this manual
13) Disassembly of Cylinder Block 123Remove thermostat cap bolts, and then thermostat cap and thermostatRemove breather coverLoosen oil pan bolts in the order reverse to the numbers shown, and remove oil pan8Wipe off spilled oil completely
Loosen crank case bolts in the order reverse to the numbers shown, and remove crank case81
Remove cam shaft and lifter 2