Yamaha XV19SX(C), Service Manual

Page: 390 / 494

ELECTRICAL COMPONENTS ...................................................................... 7-67
CHECKING THE SWITCHES ................................................................. 7-71
CHECKING THE BULBS AND BULB SOCKETS ................................... 7-74
CHECKING THE FUSES ........................................................................ 7-75
CHECKING AND CHARGING THE BATTERY ....................................... 7-76
CHECKING THE RELAYS ...................................................................... 7-79
CHECKING THE TURN SIGNAL RELAY ............................................... 7-80
CHECKING THE DIODES....................................................................... 7-81
CHECKING THE IGNITION SPARK GAP............................................... 7-83
CHECKING THE SPARK PLUG CAPS................................................... 7-83
CHECKING THE IGNITION COILS......................................................... 7-84
CHECKING THE CRANKSHAFT POSITION SENSOR.......................... 7-84
CHECKING THE LEAN ANGLE SENSOR.............................................. 7-85
CHECKING THE STARTER MOTOR OPERATION ............................... 7-85
CHECKING THE STATOR COIL ............................................................ 7-85
CHECKING THE RECTIFIER/REGULATOR .......................................... 7-86
CHECKING THE HORNS ....................................................................... 7-86
CHECKING THE ENGINE TEMPERATURE SENSOR .......................... 7-87
CHECKING THE FUEL SENDER (FUEL TANK) .................................... 7-88
CHECKING THE FUEL SENDER (FUEL PUMP) ................................... 7-88
CHECKING THE FUEL LEVEL WARNING LIGHT ................................. 7-89
CHECKING THE SPEED SENSOR ........................................................ 7-89
CHECKING THE THROTTLE POSITION SENSOR ............................... 7-89
CHECKING THE FUEL PUMP................................................................ 7-90
CHECKING THE EXUP SERVO MOTOR............................................... 7-90
CHECKING THE INTAKE AIR PRESSURE SENSOR ........................... 7-91
CHECKING THE AIR TEMPERATURE SENSOR .................................. 7-91