Yamaha YZ450F(S) Owner's Service Manual page 24

CHAPTER 6
ELECTRICAL
ELECTRICAL COMPONENTS
AND WIRING DIAGRAM ...........................6-1
MAP-CONTROLLED CDI UNIT .................6-2
IGNITION SYSTEM ....................................6-3
TPS (THROTTLE POSITION SENSOR)
SYSTEM .....................................................6-7
CHAPTER 7
TUNING
ENGINE ......................................................7-1
CHASSIS .................................................7-12