Kawasaki Ninja Service Manual: Spark Plug Condition Inspection

Kawasaki Ninja Service Manual / Electrical System / Ignition System / Spark Plug Condition Inspection

Remove the spark plugs (see Spark Plug Replacement in the Periodic Maintenance chapter).
Visually inspect the spark plugs.

If the spark plug center electrode [A] and/or side electrode [B] are corroded or damaged, or if the insulator [C] is cracked, replace the plug.

If the spark plug is dirtied or the carbon is accumulated, replace the spark plug.

Measure the gap [D] with a wire-type thickness gauge.

If the gap is incorrect, replace the spark plug.

Spark Plug Gap: 0.8 0.9 mm (0.031
0.035 in.)

Use the standard spark plug or its equivalent.

Spark Plug Condition Inspection

Standard Spark Plug Type: NGK CR9EIA-9

Stick Coil Primary Peak Voltage Inspection

NOTE Be sure the battery is fully charged. Remove the stick coils (see Stick Coil Removal). Do not remove the spark plugs. Connect the ECU to the harness. Measure the primary peak voltag ...

Interlock Operation Inspection

Raise the rear wheel off the ground with the stand [A]. 1st Check Start the engine to the following conditions Condition: Transmission Gear → 1st Position Clutch Lever → ...

Other materials:

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Replace the needle bearings, ball bearing, grease seals and circlip with new ones. Install the needle bearings, ball bearing, grease seals and circlip as shown in the figure. Insert the needle bearing driver [A] into the needle bearing [B] and press the needle bearing into the housing u ...

Idle Speed Control Valve Actuator Input Voltage Inspection
NOTE Be sure the battery is fully charged. Turn the ignition switch to OFF. Disconnect the idle speed control valve actuator connector and connect a suitable measuring leads [A] between these connectors as shown in the figure. Main Harness [B] Idle Speed Control Valve Actua ...

Fuels Containing Oxygenates
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