Make sure that the groove on the shaft is pointing toward the center of the screw [D].
If the shaft position is incorrect, refer to the following NOTE and procedures to electrically adjust the shaft position.
Torque - Exhaust Butterfly Valve Actuator Pulley Bolt: 4.9 N·m (0.50 kgf·m, 43 in·lb)
NOTICE
If the pulley bolt is tightened without holding, the actuator damage will occur.
41.7° ±7° [B]
This position is original position of the pulley.
NOTE
Correct the position electrically after confirming the use is discontinued and there is no damage when differing from the angle of shown in the figure.
NOTICE
Do not correct the pulley position with the tool, forcibly. The actuator damage will occur.
If the pulley angle is wrong, adjust the angle as follows.
Connect: 2 pins Connector 3 pins Connector
Turn the ignition switch to ON.
Confirm the pulley turns clockwise or counterclockwise then it stops at the original position.
If the pulley position has not been returned to the original position, electrically adjust the shaft position as follows.
Remove: 2 pins Connector 3 pins Connector
Turn the pulley to the original position by turning it clockwise or counterclockwise by connecting the battery to the 2 pin connector terminals. To turn the pulley gradually, intermittently connect the battery positive (+) terminal to the 2 pin connector terminal while connecting the battery negative (–) terminal to the connector.
Pink (–) lead terminal [A] Gray (+) lead terminal [B]
Clockwise: Pink (–) lead terminal to battery (–) terminal Gray (+) lead terminal to battery (+) terminal
Counterclockwise: Pink (–) lead terminal to battery (+) terminal Gray (+) lead terminal to battery (–) terminal
Reconnect the 2 pins connector and 3 pins connector, and turn the ignition switch ON.
Make sure that the pulley turns clockwise and then counterclockwise.
The pulley should returns to the original position.
Turn the ignition switch OFF.
If the pulley does not return to the original position, check the exhaust butterfly valve actuator resistance (see Exhaust Butterfly Valve Actuator Resistance Inspection).
Subthrottle Valve Actuator Input Voltage Inspection
NOTE
Be sure the battery is fully charged.
Turn the ignition switch to OFF.
Disconnect the subthrottle valve actuator connector and
connect the measuring adapter [A] between these connectors
as shown in the figure.
Main Harness [B]
Subthrottle Valve Actuator [C]
Special Tool ...
Special Tools
Fork Oil Level Gauge:
57001-1290
Vacuum Gauge:
57001-1369
Hand Tester:
57001-1394
Throttle Sensor Setting Adapter #1:
57001-1400
Peak Voltage Adapter:
57001-1415
Needle Adapter Set:
57001-1457
Throttle Sensor Setting Adapter:
57001-1538
Measuring Adapter:
57001-1700
...
Sprocket Wear Inspection
Visually inspect the engine and rear sprocket teeth for
wear and damage.
If the teeth are worn as illustrated, replace the sprocket,
and inspect the drive chain wear (see Drive Chain Wear
Inspection in the Periodic Maintenance chapter).
Worn Tooth (Engine Sprocket) [A]
Worn Tooth (Rear ...