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:

Transmission Assy Removal
Remove: Engine Sprocket (see Engine Sprocket Removal in the Final Drive chapter) Gear Position Switch (see Gear Position Switch Removal in the Electrical System chapter) Collar [A] O-ring [B] Remove: Clutch (see Clutch Removal in the Clutch chapter) Shift Shaft Assembly ...

Air Intake Duct Removal
Remove: Upper Fairing Assembly (see Upper Fairing Assembly Removal in the Frame chapter) Meter Bracket (see Meter Unit Removal/Installation in the Electrical System chapter) Immobilizer Amplifier [A] (Equipped Models) (see Immobilizer System Parts Replacement in the Electrical System ...

Water Pump Housing Disassembly
NOTICE Do not damage the hole wall of the water pump housing. Insert a bar [A] into the pump housing [B], and hammer evenly around the circumference of the mechanical seal bottom [C]. Take the oil seal [A] out of the housing [B] with a hook [C]. ...