THROTTLE POSITION SENSOR SYSTEM
INSPECTION STEPS
If the throttle position sensor will not operate, use the following inspection steps.
Check entire ignition
system for connection.
Check throttle position
sensor.
*Check CDI magneto.
Check CDI unit.
*marked: Refer to "IGNITION SYSTEM" section.
NOTE:
Use the following special tools in this inspection.
Pocket tester:
YU-3112-C/90890-03112
THROTTLE POSITION SENSOR SYSTEM
OK
Throttle posi-
tion sensor coil
OK
Charging coil
OK
Throttle posi-
tion sensor
input voltage
No good
No good
No good
No good
Inductive tachometer:
YU-8036-B
Engine tachometer:
90890-03113
6 - 7
–
+
ELEC
Repair or replace.
Replace.
Replace.
Replace.