Electrical System - Yamaha 2009 YFM25RY Service Manual

ELECTRICAL SYSTEM

IGNITION SYSTEM.......................................................................................7-1
CIRCUIT DIAGRAM................................................................................7-1
TROUBLESHOOTING ............................................................................7-3
ELECTRIC STARTING SYSTEM..................................................................7-5
CIRCUIT DIAGRAM................................................................................7-5
STARTING CIRCUIT CUT-OFF SYSTEM OPERATION.........................7-7
TROUBLESHOOTING ............................................................................7-9
CHARGING SYSTEM .................................................................................7-11
CIRCUIT DIAGRAM..............................................................................7-11
TROUBLESHOOTING ..........................................................................7-13
LIGHTING SYSTEM ...................................................................................7-15
CIRCUIT DIAGRAM..............................................................................7-15
TROUBLESHOOTING ..........................................................................7-17
SIGNALING SYSTEM.................................................................................7-19
CIRCUIT DIAGRAM..............................................................................7-19
TROUBLESHOOTING ..........................................................................7-21
CARBURETOR HEATING SYSTEM ..........................................................7-23
CIRCUIT DIAGRAM..............................................................................7-23
TROUBLESHOOTING ..........................................................................7-25
ELECTRICAL COMPONENTS...................................................................7-27
CHECKING THE SWITCHES...............................................................7-29
CHECKING THE BULBS AND BULB SOCKETS.................................7-32
CHECKING THE FUSES......................................................................7-33
CHECKING AND CHARGING THE BATTERY.....................................7-33
CHECKING THE RELAYS....................................................................7-37
CHECKING THE DIODE ......................................................................7-37
CHECKING THE SPARK PLUG CAP...................................................7-38
CHECKING THE IGNITION COIL ........................................................7-38
CHECKING THE PICKUP COIL ...........................................................7-39
CHECKING THE STARTER MOTOR OPERATION..............................7-40
CHECKING THE STATOR COIL...........................................................7-40
CHECKING THE RECTIFIER/REGULATOR ........................................7-41
CHECKING THE THERMO SWITCH ...................................................7-41
CHECKING THE CARBURETOR WARMER .......................................7-42
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