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:

Handlebar Installation
Apply a non-permanent locking agent to the threads of the handlebar positioning bolts and tighten them. Torque - Handlebar Positioning Bolts: 9.8 N·m (1.0 kgf·m, 87 in·lb) Install the steering stem head with handlebars. Install the washer [A] and steering stem head nut [B]. Tighten: ...

Exhaust Pipe Removal
Remove: Radiator (see Radiator and Radiator Fan Removal in the Cooling System chapter) Exhaust Pipe Clamp Bolt [A] (Loosen) Remove the exhaust pipe holder nuts [A], and pull out the exhaust pipe [B] forward from the premuffler chamber. ...

Throttle Grip and Cables
Free Play Inspection Refer to the Throttle Control System Inspection in the Periodic Maintenance chapter. Free Play Adjustment Refer to the Throttle Control System Inspection in the Periodic Maintenance chapter. Cable Installation Install the throttle cables in accordance with the Cable, ...