Kawasaki Ninja Service Manual: Exhaust Butterfly Valve Actuator Removal - Exhaust Butterfly Valve Actuator (Service Code 63)

Never drop the exhaust butterfly valve actuator especially on a hard surface. Such a shock to the actuator can damage it.

If the pulley bolt is removed without holding, the actuator damage will occur.

Exhaust Butterfly Valve Actuator Installation

Install the pulley [A] on the actuator so that the hole side [B] align with the groove [C] on the shaft. Make sure that the groove on the shaft is pointing toward the center of the screw [D]. ...

Other materials:

Valve Removal
Remove the cylinder head (see Cylinder Head Removal). Remove the valve lifter and shim. Mark and record the valve lifter and shim locations so they can be installed in their original positions. Using the valve spring compressor assembly, remove the valve. Special Tools - Valve ...

General Information
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Operational Cautions
1. Do not put two keys of any immobilizer system on the same key ring. 2. Do not submerge any key in water. 3. Do not expose any key to excessively high temperature. 4. Do not place any key close to magnet. 5. Do not place a heavy item on any key. 6. Do not grind any key or alter its ...