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:

Balance Adjustment
If the wheel always stops in one position, provisionally attach a balance weight [A] on the rim at the marking using adhesive tape. Rotate the wheel 1/4 turn [B], and see whether or not the wheel stops in this position. If it does, the correct balance weight is being used. If the whe ...

Rear Shock Absorber Removal
Remove: Lower Fairings (see Lower Fairing Removal in the Frame chapter) Fuel Tank (see Fuel Tank Removal in the Fuel System chapter) Bolts [A] (Both Sides) Foot Guard [B] (Both Sides) Squeeze the brake lever slowly and hold it with a band [A]. WARNINGBe sure to h ...

Check 2-2: Fuel Level Warning Inspection
Remove: Fuel Tank (see Fuel Tank Removal in the Fuel System (DFI) chapter) Connect the resistor(s) [A] (about 50 to 100 Ω) between the fuel pump connector terminal [B] of the main harness side and the battery negative (–) terminal [C] as shown. Turn the ignition switch ...