Kawasaki Ninja Service Manual: Spark Plug Condition Inspection

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

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.

If the gap is incorrect, replace the spark plug.

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


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:

Brake Fluid Leak (Brake Hose and Pipe) Inspection
For KIBS equipped models, remove the fuel tank (see Fuel Tank Removal in the Fuel System (DFI) chapter). Apply the brake lever or pedal and inspect the brake fluid leak from the brake hoses [A], pipes (KIBS equipped models) [B] and fittings [C]. If the brake fluid leaked from any posit ...

Connecting Rod Big End Bearing Insert/Crankpin Wear Inspection
Remove the connecting rod big end (see Connecting Rod Removal). Cut strips of plastigage to crankpin width. Place a strip on the crankpin parallel to the crankshaft installed in the correct position. Tighten the connecting rod big end nuts to the specified torque (see Connecting Rod I ...

Power Mode Indicator
This indicator shows the selected Power Mode. For more detailed information about the power mode, see power mode section in the How to Ride the Motorcycle chapter. A. Power Mode Indicator NOTE When all power mode indicators go off, the battery voltage is insufficient. Have the machine ...