Troubleshooting - Yamaha YFM7FGPW Service Manual

COOLING SYSTEM....................................................................................... 9-45
CIRCUIT DIAGRAM ................................................................................ 9-45
TROUBLESHOOTING ............................................................................9-46
FUEL PUMP SYSTEM...................................................................................9-50
CIRCUIT DIAGRAM ................................................................................ 9-50
TROUBLESHOOTING ............................................................................9-51
2WD/4WD SELECTING SYSTEM.................................................................9-53
CIRCUIT DIAGRAM ................................................................................ 9-53
TROUBLESHOOTING ............................................................................9-54
EPS (ELECTRIC POWER STEERING) SYSTEM.........................................9-58
CIRCUIT DIAGRAM ................................................................................ 9-58
EPS CONTROL UNIT'S SELF-DIAGNOSTIC FUNCTION .....................9-59
EPS WARNING LIGHT DURING NORMAL OPERATION......................9-60
DIAGNOSTIC MODE .............................................................................. 9-61
SELF-DIAGNOSTIC FUNCTION TABLE (EPS SYSTEM)......................9-64
TROUBLESHOOTING DETAILS (EPS SYSTEM) ..................................9-65
CHECKING THE EPS MOTOR...............................................................9-69
CHECKING THE EPS TORQUE SENSOR............................................. 9-69
STARTING FAILURE/HARD STARTING .....................................................10-1
FUEL SYSTEM........................................................................................ 10-1
ELECTRICAL SYSTEM...........................................................................10-1
COMPRESSION SYSTEM...................................................................... 10-2
POOR IDLE SPEED PERFORMANCE ......................................................... 10-2
POOR IDLE SPEED PERFORMANCE...................................................10-2
POOR MEDIUM AND HIGH-SPEED PERFORMANCE................................10-2
POOR MEDIUM AND HIGH-SPEED PERFORMANCE ......................... 10-2
FAULTY DRIVE TRAIN ................................................................................. 10-3
FAULTY GEAR SHIFTING............................................................................10-4
HARD SHIFTING.....................................................................................10-4
SHIFT LEVER DOES NOT MOVE .......................................................... 10-4
JUMPS OUT OF GEAR...........................................................................10-4
CHAPTER 10

TROUBLESHOOTING