Kawasaki Ninja Service Manual: Commutator Cleaning and Inspection

Kawasaki Ninja Service Manual / Electrical System / Electric Starter System / Commutator Cleaning and Inspection

Clean the metallic debris off the between commutator segments [A].

NOTE

Do not use emery or sand paper on the commutator.

Check the commutator for damage or abnormal wear.

Commutator Cleaning and Inspection

Replace the starter motor with a new one if there is any damage or wear.

Visually inspect the commutator segments for discoloration.

Replace the starter motor with a new one if discoloration is noticed.

Brush Inspection

Measure the length of each brush [A]. If any is worn down to the service limit, replace the brush assy. Starter Motor Brush Length [B] Standard: 12.05 mm (0.4744 in.) Service Limit: 6.55 mm ...

Armature Inspection

Using the × 1 Ω hand tester range, measure the resistance between any two commutator segments [A]. Special Tool - Hand Tester: 57001-1394 If there is a high resistance or no readin ...

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Chain Slack Inspection
Set the motorcycle up on its side stand. Rotate the rear wheel to find the position where the chain is tightest, and measure the maximum chain slack by pulling up and pushing down the chain midway between the engine sprocket and rear wheel sprocket. A. Chain Slack If the ...

Spring Preload Adjustment
The spring preload adjuster is located at the lower end of each front fork leg and can be adjusted. To increase spring preload and stiffen the suspension, turn the preload adjuster clockwise with a hexagon wrench. To decrease preload and soften the suspension, turn the preload adjust ...

Vehicle-down Sensor Output Voltage Inspection
Remove the vehicle-down sensor. Connect the measuring adapter [A] to the vehicle-down sensor connectors as shown in the figure. Special Tool - Measuring Adapter: 57001-1700 Main Harness [B] Vehicle-down Sensor [C] Connect a digital meter [D] to the measuring adapter leads. V ...