8
ELECTRICAL SYSTEM
IGNITION SYSTEM ..........................................................................................8-2
CIRCUIT DIAGRAM ...................................................................................8-2
TROUBLESHOOTING ...............................................................................8-4
CHARGING SYSTEM.......................................................................................8-6
CIRCUIT DIAGRAM ...................................................................................8-6
TROUBLE SHOOTING ..............................................................................8-8
FUEL INJECTION SYSTEM...........................................................................8-10
CIRCUIT DIAGRAM .................................................................................8-10
YAMAHA DIAGNOSTIC TOOL ................................................................8-12
TROUBLESHOOTING DETAILS .............................................................8-13
FUEL PUMP SYSTEM....................................................................................8-32
CIRCUIT DIAGRAM .................................................................................8-32
TROUBLESHOOTING .............................................................................8-34
ELECTRICAL COMPONENTS.......................................................................8-36
..................................................................................................................8-36
CHECKING THE SWITCHES ..................................................................8-38
CHECKING THE IGNITION SPARK GAP................................................8-41
CHECKING THE SPARK PLUG CAP ......................................................8-41
CHECKING THE IGNITION COIL ............................................................8-41
CHECKING THE CRANKSHAFT POSITION SENSOR...........................8-42
CHECKING THE ECU..............................................................................8-43
CHECKING THE STATOR COIL .............................................................8-43
CHECKING THE RECTIFIER/REGULATOR ...........................................8-43
CHECKING THE COOLANT TEMPERATURE SENSOR........................8-44
CHECKING THE THROTTLE POSITION SENSOR ................................8-44
CHECKING THE THROTTLE POSITION SENSOR
INPUT VOLTAGE....................................................................................8-45
CHECKING THE INTAKE AIR PRESSURE SENSOR ............................8-46
CHECKING THE INTAKE AIR TEMPERATURE SENSOR .....................8-46
CHECKING THE NEUTRAL SWITCH .....................................................8-46
CHECKING THE FUEL INJECTOR .........................................................8-47
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