Yamaha 115-225 HP Outboards Service Manual, Page 88Get this manual
G100050
CHAPTER POWER UNIT
POWER UNIT 5-1 EXPLODED DIAGRAM 5-1 PREPARATION FOR OVERHAUL 5-5 REMOVAL 5-6 DISASSEMBLY 5-8 CLEANING AND INSPECTION 5-10 CYLINDER HEAD 5-10 CYLINDER BLOCK 5-11 PISTON 5-12 PISTON RING 5-13 PISTON PIN AND SMALL END BEARING 5-14 CRANKSHAFT 5-14 REED VALVE 5-15 THERMOSTAT 5-15 PRESSURE CONTROL VALVE 5-16 CRANK MAIN BEARING 5-16 CRANK DISK SEAL RINGS 5-16 OIL INJECTION PUMP DRIVE GEAR 5-16 ASSEMBLY AND ADJUSTMENT 5-17 CRANKSHAFT 5-17 PISTON 5-17 SMALL END BEARINGS AND PISTON ASSEMBLy 5-18 CRANK UPPER BEARING HOUSING 5-19 CRANK LOWER OIL SEAL HOUSING 5-19 CRANK CYLINDER ASSEMBLY 5-19 CYLINDER HEAD AND EXHAUST COVER 5-24 INTAKE MANIFOLD 5-27 DRAINLESS HOSES 5-28 OIL INJECTION PUMP 5-28 ENGINE STOPPERS 5-29 INSTALLATION 5-30