2009 Yamaha F40 Outboard Service Manual, Page 232Get this manual
Cylinder block
Disassembling the cylinder block
1Loosen the crankcase bolts and in the sequence numbers (a, b, )
a b2Remove the crankcase bolts and b, and then remove the crankcase c
Make sure to keep the crankpin bearings in their original groups Mark each piston with an identification number of the corresponding cylinder Do not mix the connecting rods and capsKeep them organized in their proper groups4Remove the crankshaft e, the crankshaft journal bearings f, and the oil seals and h