Yamaha PZ50W Service Manual page 8

CYLINDER HEAD........................................... 5-28
REMOVAL ................................................ 5-29
INSPECTION ............................................ 5-29
INSTALLATION ........................................ 5-30
VALVES AND VALVE SPRINGS................... 5-32
REMOVAL ................................................ 5-33
INSPECTION ............................................ 5-34
INSTALLATION ........................................ 5-38
A.C. MAGNETO ROTOR AND STARTER
CLUTCH ......................................................... 5-41
REMOVAL ................................................ 5-42
INSPECTION ............................................ 5-43
INSTALLATION ........................................ 5-44
OIL PAN AND OIL PUMP .............................. 5-46
REMOVAL ................................................ 5-49
INSPECTION ............................................ 5-49
INSTALLATION ........................................ 5-50
BALANCER .................................................... 5-52
REMOVAL ................................................ 5-54
INSPECTION ............................................ 5-55
INSTALLATION ........................................ 5-55
CRANKCASE ................................................. 5-58
CRANKCASE............................................ 5-58
CONNECTING RODS AND PISTONS ..... 5-59
CRANKSHAFT.......................................... 5-60
REMOVAL ................................................ 5-61
INSPECTION ............................................ 5-63
INSTALLATION ........................................ 5-74
CHAPTER 6.
COOLING SYSTEM
RADIATOR AND HEAT EXCHANGER............ 6-1
INSPECTION .............................................. 6-3
INSTALLATION .......................................... 6-4
THERMOSTAT ................................................. 6-5
INSPECTION .............................................. 6-6
INSTALLATION .......................................... 6-6
WATER PUMP.................................................. 6-8
DISASSEMBLY......................................... 6-10
INSPECTION ............................................ 6-10
ASSEMBLY............................................... 6-11
INSTALLATION ........................................ 6-12
CHAPTER 7.
FUEL INJECTION SYSTEM
FUEL INJECTION SYSTEM ............................. 7-1
WIRING DIAGRAM ..................................... 7-2
ECU SELF-DIAGNOSTIC FUNCTION ....... 7-4
SELF-DIAGNOSTIC FUNCTION TABLE.... 7-4
TROUBLESHOOTING CHART................... 7-6
DIAGNOSTIC MODE .................................. 7-7
TROUBLESHOOTING DETAILS .............. 7-14
OIL PRESSURE SWITCH ........................ 7-28
INTAKE AIR TEMPERATURE
SENSOR ................................................... 7-28
THROTTLE BODY.......................................... 7-29
INJECTORS.............................................. 7-30
INSPECTION ............................................ 7-31
PRESSURE REGULATOR
OPERATION ............................................. 7-31
INSPECTION AND ADJUSTMENT .......... 7-32
CHAPTER 8.
ELECTRICAL
SWITCH INSPECTION ..................................... 8-1
SWITCH INSPECTION ............................... 8-1
INSPECTING A SWITCH SHOWN IN
THE MANUAL ............................................. 8-1
IGNITION SYSTEM .......................................... 8-2
CIRCUIT DIAGRAM.................................... 8-2
TROUBLESHOOTING ................................ 8-4
IGNITION SPARK GAP .............................. 8-6
IGNITION COIL........................................... 8-6
CRANKSHAFT POSITION SENSOR ......... 8-7
THROTTLE OVERRIDE SYSTEM
(T.O.R.S.).................................................... 8-8
ENGINE STOP SWITCH ............................ 8-9
THROTTLE SWITCH .................................. 8-9
MAIN SWITCH .......................................... 8-10
ELECTRICAL STARTING SYSTEM .............. 8-11
CIRCUIT DIAGRAM.................................. 8-11
TROUBLESHOOTING .............................. 8-12
STARTER MOTOR ................................... 8-14
CHARGING SYSTEM ..................................... 8-19
CIRCUIT DIAGRAM.................................. 8-19
TROUBLESHOOTING .............................. 8-20
BATTERY.................................................. 8-21
A.C. MAGNETO ........................................ 8-21