Yamaha 2009 YZF-R1 (Y) Service Manual page 390

ELECTRICAL COMPONENTS.................................................................8-117
CHECKING THE SWITCHES.............................................................8-121
CHECKING THE BULBS AND BULB SOCKETS...............................8-124
CHECKING THE FUSES....................................................................8-125
CHECKING AND CHARGING THE BATTERY...................................8-125
CHECKING THE RELAYS..................................................................8-129
CHECKING THE TURN SIGNAL/HAZARD RELAY ...........................8-130
CHECKING THE RELAY UNIT (DIODE) ............................................8-131
CHECKING THE IGNITION COILS ....................................................8-132
CHECKING THE CRANKSHAFT POSITION SENSOR .....................8-133
CHECKING THE LEAN ANGLE SENSOR .........................................8-133
CHECKING THE STARTER MOTOR OPERATION............................8-134
CHECKING THE STATOR COIL.........................................................8-134
CHECKING THE RECTIFIER/REGULATOR ......................................8-135
CHECKING THE HORN .....................................................................8-135
CHECKING THE OIL LEVEL SWITCH ..............................................8-136
CHECKING THE FUEL SENDER ......................................................8-136
CHECKING THE SPEED SENSOR ...................................................8-137
CHECKING THE RADIATOR FAN MOTOR........................................8-137
CHECKING THE COOLANT TEMPERATURE SENSOR ..................8-138
CHECKING THE THROTTLE POSITION SENSOR...........................8-138
CHECKING THE ACCELERATOR POSITION SENSOR ...................8-139
CHECKING THE THROTTLE SERVO MOTOR..................................8-139
CHECKING THE AIR INDUCTION SYSTEM SOLENOID .................8-140
CHECKING THE ATMOSPHERIC PRESSURE SENSOR.................8-140
CHECKING THE CYLINDER IDENTIFICATION SENSOR ................8-141
CHECKING THE INTAKE AIR PRESSURE SENSOR .......................8-141
CHECKING THE INTAKE AIR TEMPERATURE SENSOR ................8-142
CHECKING THE STEERING DAMPER SOLENOID .........................8-142
CHECKING THE GEAR POSITION SENSOR ...................................8-143
CHECKING THE FUEL INJECTORS .................................................8-144