2000-2005 Yamaha F40B Outboard Service Manual, Page 162Get this manual
IpOVVRI4!JI _ CRANKSHAFT AND PISTON 5-39 REMOVINGINSTALLING THE CRANKSHAFT AND PISTON 5-39 DISASSEMBLINGASSEMBLING THE PISTON 5-41 CHECKING THE PISTON-TO-CYLINDER CLEARANCE 5-42 CHECKING THE PISTON PIN 5-43 CHECKING THE PISTON RING 5-43 CHECKING THE CRANKSHAFT 5-44 CHECKING THE MAIN-BEARING OIL CLEARANCE 5-45 CHECKING THE BIG-END OIL CLEARANCE 5-47 INSTALLING THE PISTON RING 5-49 INSTALLING IN THE ENGINE 5-49 INSTALLING THE OIL SEAL 5-49