Yamaha WR450FR Owner's Service Manual page 14

CHAPTER 6
ELECTRICAL
ELECTRICAL COMPONENTS
AND WIRING DIAGRAM .......................... 6-1
MAP-CONTROLLED CDI UNIT ................ 6-2
IGNITION SYSTEM ................................... 6-3
ELECTRIC STARTING SYSTEM ............. 6-7
CHARGING SYSTEM ............................. 6-17
TPS (THROTTLE POSITION SENSOR)
SYSTEM .................................................. 6-19
LIGHTING SYSTEM ................................ 6-24
CHAPTER 7
TUNING
ENGINE ..................................................... 7-1
CHASSIS ................................................. 7-10