Yamaha WR426F(P) 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
LIGHTING SYSTEM ................................6-12
CHAPTER 7
TUNING
ENGINE ......................................................7-1
CHASSIS .................................................7-11