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FUEL SYSTEM (DFI) 3-97
Exhaust Butterfly Valve Actuator (Service Code 63)
Exhaust Butterfly Valve Actuator Removal
•
Refer to the Exhaust Butterfly Valve Actuator Removal in
the Engine Top End chapter.
Exhaust Butterfly Valve Actuator Installation
•
Refer to the Exhaust Butterfly Valve Actuator Installation
in the Engine Top End chapter.
Exhaust Butterfly Valve Actuator Inspection
NOTE
○
Be sure the battery is fully charged
•
Remove the front seat (see Front Seat Removal in the
Frame chapter).
•
Turn the ignition switch on.
•
Make sure that the pulley turns clockwise, then coun-
terclockwise and then returns slightly clockwise [A] as
shown.
NOTE
○
The stop position [B] of the pulley is changed by the
cables tension and the closed position of the exhaust
butterfly valve.
•
Turn the ignition switch off.
If the pulley does not operate, check the exhaust butter-
fly valve actuator resistance (see Exhaust Butterfly Valve
Actuator Inspection Resistance Inspection).
Exhaust Butterfly Valve Actuator Resistance
Inspection
•
Remove the front seat (see Front Seat Removal in the
Frame chapter).
•
Remove the fuse boxes from the battery case.
•
Turn the ignition switch off.
•
Disconnect the exhaust butterfly valve actuator lead con-
nector (2 pins connector) [A].
•
Connect a tester to the exhaust butterfly valve actuator
connector.
•
Measure the exhaust butterfly valve actuator resistance.
Exhaust Butterfly Valve Actuator Resistance
Connections: P lead ←→ GY lead
Standard: 5
∼ 200 Ω (for reference)
If the reading is 0 or infinity () , replace the exhaust
butterfly valve actuator.
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