Electrical - Yamaha RS90GTZ Service Manual

CRANKSHAFT AND BALANCER
SHAFT ......................................................5-77
REMOVE .............................................5-79
INSPECTION .......................................5-80
INSTALLATION ...................................5-84
CHAPTER 6.
COOLING SYSTEM
HEAT EXCHANGER ..................................6-1
HEAT EXCHANGER (RS90GTZ/
RS90LTGTZ) .........................................6-1
HEAT EXCHANGER (RST90GTZ) ........6-4
INSPECTION .........................................6-6
INSTALLATION .....................................6-7
THERMOSTAT ...........................................6-8
IINSPECTION ........................................6-9
INSTALLATION .....................................6-9
WATER PUMP..........................................6-11
REMOVAL ...........................................6-13
DISASSEMBLY....................................6-13
INSPECTION .......................................6-14
ASSEMBLY..........................................6-14
INSTALLATION ...................................6-16
CHAPTER 7.
FUEL INJECTION SYSTEM
FUEL INJECTION SYSTEM.......................7-1
CIRCUIT DIAGRAM (RS90GTZ/
RS90LTGTZ) .........................................7-3
CIRCUIT DIAGRAM (RST90GTZ) .........7-5
ECU SELF-DIAGNOSTIC
FUNCTION ............................................7-7
SELF-DIAGNOSTIC FUNCTION
TABLE....................................................7-7
TROUBLESHOOTING CHART .............7-9
DIAGNOSTIC MODE ...........................7-10
TROUBLESHOOTING DETAILS .........7-18
OIL PRESSURE SWITCH ...................7-31
INTAKE AIR TEMPERATURE
SENSOR ..............................................7-31
ISC (IDLE SPEED CONTROL)
UNIT.....................................................7-32
THROTTLE BODY ................................... 7-33
INJECTORS ........................................ 7-35
REMOVAL ........................................... 7-36
INSPECTION....................................... 7-36
FUEL PRESSURE INSPECTION........ 7-37
INSPECTION AND ADJUSTMENT..... 7-38
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 (RS90GTZ/
RS90LTGTZ) ......................................... 8-2
CIRCUIT DIAGRAM (RST90GTZ) ........ 8-4
TROUBLESHOOTING .......................... 8-6
IGNITION SPARK GAP......................... 8-8
IGNITION COIL ..................................... 8-8
CRANKSHAFT POSITION SENSOR.... 8-9
THROTTLE OVERRIDE SYSTEM
(T.O.R.S.) ............................................ 8-10
ENGINE STOP SWITCH..................... 8-11
THROTTLE SWITCH .......................... 8-12
MAIN SWITCH .................................... 8-12
ELECTRICAL STARTING SYSTEM........ 8-13
CIRCUIT DIAGRAM (RS90GTZ/
RS90LTGTZ) ....................................... 8-13
CIRCUIT DIAGRAM (RST90GTZ) ...... 8-14
TROUBLESHOOTING ........................ 8-15
STARTER MOTOR ............................. 8-17
CHARGING SYSTEM .............................. 8-22
CIRCUIT DIAGRAM (RS90GTZ/
RS90LTGTZ) ....................................... 8-22
CIRCUIT DIAGRAM (RST90GTZ) ...... 8-23
TROUBLESHOOTING ........................ 8-24
BATTERY ............................................ 8-26
STATOR COIL..................................... 8-26