Kawasaki Ninja Service Manual: Charging Voltage Inspection

Kawasaki Ninja Service Manual / Electrical System / Charging System / Charging Voltage Inspection

Check the battery condition (see Charging Condition Inspection).
Warm up the engine to obtain actual alternator operating conditions.
Remove the front seat (see Front Seat Removal in the Frame chapter).
Check that the ignition switch is turned off, and connect the hand tester [A] to the battery terminals [B].

Special Tool - Hand Tester: 57001-1394

Start the engine, and note the voltage readings at various engine speeds with the headlight turned on and then turned off (To turn off the headlight, disconnect the headlight connector.). The readings should show nearly battery voltage when the engine speed is low, and, as the engine speed rises, the readings should also rise. But they must be kept under the specified voltage.

Charging Voltage

Charging Voltage Inspection

Turn off the ignition switch to stop the engine, and disconnect the hand tester.

If the charging voltage is kept between the values given in the table, the charging system is considered to be working normally.

If the charging voltage is much higher than the values specified in the table, the regulator/rectifier is defective or the regulator/rectifier leads are loose or open.

If the charging voltage does not rise as the engine speed increases, then the regulator/rectifier is defective or the alternator output is insufficient for the loads. Check the alternator and regulator/rectifier to determine which part is defective.

Alternator Rotor Installation

Using a cleaning fluid, clean off any oil or dirt on the following portions and dry them with a clean cloth. Crankshaft Tapered Portion [A] Alternator Rotor Tapered Portion [B] Install th ...

Alternator Inspection

There are three types of alternator failures: short, open (wire burned out), or loss in rotor magnetism. A short or open in one of the coil wires will result in either a low output, or no output at ...

Other materials:

Stick Coil Installation
Apply a thin coat of grease [A] to the stick coils for easy installation. Insert the stick coils so that the coil heads align with the lines [B] on the cylinder head cover. NOTICE Do not tap the coil head while installing the coil. After installation, be sure the stick coils are ...

Battery Maintenance
It is the owner’s responsibility to keep the battery fully charged. Failure to do so can lead to battery failure and leave you stranded. If you are riding your vehicle infrequently, inspect the battery voltage weekly using a voltmeter. If it drops below 12.8 volts, the battery should be ...

Oil Level Inspection
If the oil has just been changed, start the engine and run it for severalminutes at idle speed. This fills the oil filter with oil. Stop the engine, then wait several minutes until the oil settles. NOTICE Racing the engine before the oil reaches every part can cause engine seizure. ...