Yamaha RS90K Service Manual page 7

A.C. MAGNETO ROTOR
AND STARTER CLUTCH............................... 5-37
REMOVAL ................................................ 5-38
INSPECTION ............................................ 5-39
INSTALLATION ........................................ 5-40
OIL PAN AND OIL PUMP .............................. 5-42
REMOVAL ................................................ 5-45
INSPECTION ............................................ 5-45
INSTALLATION ........................................ 5-47
CRANKCASE ................................................. 5-49
CRANKCASE............................................ 5-49
CONNECTING RODS AND PISTONS ..... 5-51
CRANKSHAFT
AND BALANCER SHAFT ......................... 5-52
REMOVAL ................................................ 5-54
INSPECTION ............................................ 5-56
INSTALLATION ........................................ 5-67
CHAPTER 6.
COOLING SYSTEM
HEAT EXCHANGER ........................................ 6-1
INSPECTION .............................................. 6-4
INSTALLATION .......................................... 6-5
THERMOSTAT ................................................. 6-6
INSPECTION .............................................. 6-7
INSTALLATION .......................................... 6-7
WATER PUMP.................................................. 6-9
REMOVAL ................................................ 6-11
DISASSEMBLY......................................... 6-11
INSPECTION ............................................ 6-12
ASSEMBLY............................................... 6-12
INSTALLATION ........................................ 6-13
CHAPTER 7.
CARBURETION
CARBURETORS AND FUEL PUMP................ 7-1
INSPECTION .............................................. 7-6
ASSEMBLY................................................. 7-8
INSTALLATION .......................................... 7-9
FUEL LEVEL ADJUSTMENT ................... 7-10
THROTTLE POSITION SENSOR (T.P.S.)
INSPECTION AND ADJUSTMENT .......... 7-11
INSPECTION ............................................ 7-12
INSTALLATION ........................................ 7-13
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
PICKUP COIL ............................................. 8-7
THROTTLE OVERRIDE SYSTEM
(T.O.R.S.).................................................... 8-8
ENGINE STOP SWITCH ............................ 8-8
THROTTLE SWITCH .................................. 8-9
MAIN SWITCH ............................................ 8-9
ELECTRICAL STARTING SYSTEM .............. 8-10
CIRCUIT DIAGRAM.................................. 8-10
TROUBLESHOOTING .............................. 8-11
STARTER MOTOR ................................... 8-13
CHARGING SYSTEM ..................................... 8-18
CIRCUIT DIAGRAM.................................. 8-18
TROUBLESHOOTING .............................. 8-19
BATTERY.................................................. 8-20
A.C. MAGNETO ........................................ 8-20
LIGHTING SYSTEM ....................................... 8-22
CIRCUIT DIAGRAM.................................. 8-22
TROUBLESHOOTING .............................. 8-24
BULB(S) .................................................... 8-26
HEADLIGHT BEAM SWITCH ................... 8-26
HEADLIGHT RELAY................................. 8-26
LOAD CONTROL RELAY ......................... 8-27
SIGNAL SYSTEM ........................................... 8-28
CIRCUIT DIAGRAM.................................. 8-28
TROUBLESHOOTING .............................. 8-30
BRAKE LIGHT SWITCH ........................... 8-36
GEAR POSITION SWITCH
(RS90R/RSG90/RST90/RST90TF)........... 8-36
DC BACK BUZZER
(RS90R/RSG90/RST90/RST90TF)........... 8-36
COOLANT TEMPERATURE SENSOR .... 8-37
OIL LEVEL SWITCH ................................. 8-38
FUEL SENDER ......................................... 8-38
SPEED SENSOR...................................... 8-39