Yamaha YFZ450S 2003 Service Manual page 322

ELECTRICAL COMPONENTS........................................................................ 8-1
CHECKING SWITCH CONTINUITY................................................................8-2
CHECKING THE SWITCHES..........................................................................8-3
CHECKING THE BULBS AND BULB SOCKETS .......................................... 8-5
TYPES OF BULBS .................................................................................... 8-5
CHECKING THE CONDITION OF THE BULBS ....................................... 8-5
CHECKING THE CONDITION OF THE BULB SOCKETS .......................8-7
IGNITION SYSTEM ......................................................................................... 8-8
CIRCUIT DIAGRAM .................................................................................. 8-8
THROTTLE OVERRIDE SYSTEM (T.O.R.S.) OPERATION .................... 8-9
TROUBLESHOOTING ............................................................................8-10
CHECKING THE THROTTLE OVERRIDE SYSTEM..............................8-14
ELECTRIC STARTING SYSTEM .................................................................. 8-16
CIRCUIT DIAGRAM ................................................................................ 8-16
STARTING CIRCUIT CUT-OFF SYSTEM OPERATION ........................ 8-17
TROUBLESHOOTING ............................................................................8-18
STARTER MOTOR........................................................................................ 8-22
CHECKING THE STARTER MOTOR .....................................................8-24
ASSEMBLING THE STARTER MOTOR................................................. 8-25
CHARGING SYSTEM....................................................................................8-26
CIRCUIT DIAGRAM ................................................................................ 8-26
TROUBLESHOOTING ............................................................................8-27
LIGHTING SYSTEM ......................................................................................8-29
CIRCUIT DIAGRAM ................................................................................ 8-29
TROUBLESHOOTING ............................................................................8-30
CHECKING THE LIGHTING SYSTEM....................................................8-31
SIGNAL SYSTEM.......................................................................................... 8-33
CIRCUIT DIAGRAM ................................................................................ 8-33
TROUBLESHOOTING ............................................................................8-34
CHECKING THE SIGNALING SYSTEM ................................................. 8-35
COOLING SYSTEM....................................................................................... 8-39
CIRCUIT DIAGRAM ................................................................................ 8-39
TROUBLESHOOTING ............................................................................8-40
CHAPTER 8
ELECTRICAL
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ELEC