Kawasaki Ninja Service Manual: Exhaust Butterfly Valve Actuator Resistance Inspection

Kawasaki Ninja Service Manual / Self-Diagnosis System / Exhaust Butterfly Valve Actuator (Service Code 63) / Exhaust Butterfly Valve Actuator Resistance Inspection

Special Tool - Hand Tester: 57001-1394

Exhaust Butterfly Valve Actuator Resistance Connections: P lead ←→ GY lead Standard: 5 200 Ω (for reference)


If the reading is 0 or infinity (∞) Ω, replace the exhaust butterfly valve actuator.

If the reading is in specification, remove the ECU and check the wiring for continuity between main harness connectors.

Disconnect the ECU and actuator connectors.

Exhaust Butterfly Valve Actuator Resistance Inspection


Wiring Inspection ECU Connector [A] ←→ Exhaust Butterfly Valve Actuator Connector [B] W/R lead (ECU terminal 45) [C] W/BL lead (ECU terminal 46) [D]

Exhaust Butterfly Valve Actuator Resistance Inspection


If the wiring is good, check the ECU for its ground and power supply (see ECU Power Supply Inspection in the Fuel System (DFI) chapter).

If the ground and power supply are good, replace the ECU (see ECU Removal/Installation in the Fuel System (DFI) chapter).

Exhaust Butterfly Valve Actuator Circuit

Exhaust Butterfly Valve Actuator Circuit


1. ECU

2. Exhaust Butterfly Valve Actuator

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 to ON. In the left side view of the motorcycle, check ...

Air Switching Valve (Service Code 64)
Air Switching Valve Removal/Installation Refer to the Air Switching Valve Removal/Installation in the Engine Top End chapter. Air Switching Valve Inspection Refer to the Air Switching Val ...

Other materials:

Battery Maintenance
It is the owner’s responsibility to keep the battery fully charged. Failure to do so can lead to battery failure and leave you stranded. If you are riding your vehicle infrequently, inspect the battery voltage weekly using a voltmeter. If it drops below 12.8 volts, the battery should be ...

Muffler Body Installation
Replace the muffler body gasket [A] with a new one. Install the muffler body gasket to the premuffler chamber [B] until it is bottomed so that the chamfer side faces premuffler chamber. Install the muffler body clamp [C] as shown in the figure. Insert the projection [D] into the slot [ ...

Starter Clutch Assembly
Install the one-way clutch [A] to the driven gear. Face the circlip side of the one-way clutch to inside. Install the new snap ring [B] to the one-way clutch. Install the drive gear [C] while turn it counterclockwise [D]. Apply molybdenum disulfide oil solution to the needle bearing ...