Kawasaki J300 - Owner's Manual > Battery

The battery installed in this motorcycle is a sealed type, so it is not necessary to check the battery electrolyte level or add distilled water.


Never remove the sealing strip, or the battery can be damaged.

Do not install a conventional battery in this motorcycle, or the electrical system cannot work properly.


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 charged using an appropriate charger (check with your Kawasaki dealer). If you will not be using the motorcycle for longer than two weeks, the battery should be charged using an appropriate charger. Do not use an automotive-type quick charger that may overcharge the battery and damage it.


Kawasaki-recommended chargers are:

Battery Mate 150-9
OptiMate 4
Yuasa MB-2040/2060
Christie C10122S

If the above chargers are not available, use equivalent one.

For more details, ask your Kawasaki dealer.

Battery Charging


Battery acid generates hydrogen gas which is flammable and explosive under certain conditions.

It is present within a battery at all times, even in a discharged condition.

Keep all flames and sparks away from the battery.

Wear eye protection when working with a battery. In the event of battery acid contact with skin, eyes, or clothing, wash the affected areas immediately with water for at least 5 minutes. Seek medical attention.

Battery Removal

Battery Removal

  1. Screws
  2. Battery Cover

Battery Removal

  1. Bolts
  2. Battery Case Cover

Battery Removal

  1. (+) Terminal (with Protective Cap)
  2. (-) Terminal
  3. Battery

Battery Installation



Installing the (-) cable to the (+) terminal of the battery or the (+) cable to the (-) terminal of the battery can seriously damage the electrical system.


Headlight aiming should be done by an authorized Kawasaki dealer.



Fuses are arranged in the fuse box located battery case. If a fuse fails during operation, inspect the electrical system to determine the cause, and then replace it with a new fuse of proper amperage.

If the fuse fails repeatedly, there is something wrong with the electrical system. Have the motorcycle checked by an authorized Kawasaki dealer.


  1. Fuses
  2. Spare Fuses


Substituting fuses can cause wiring to overheat, catch fire and/or fail. Do not use any substitute for the standard fuse. Replace the blown fuse with a new one of the correct capacity, as specified on the fuse.


  1. Normal
  2. Failed

General Lubrication

Lubricate the points shown below, with either engine oil or regular grease, in accordance with the Periodic Maintenance Chart or whenever the vehicle has been operated under wet or rainy conditions.

Before lubricating each part, clean off any rusty spots with rust remover and wipe off any grease, oil, dirt, or grime.

Apply motor oil to the following pivots

Lubricate the following cables with a pressure cable luber

Apply grease to the following points

(K): Should be serviced by an authorized Kawasaki dealer.


See also:

 Kawasaki J300 - Owner's Manual > Setting Table

Rear Shock Absorber Spring Preload Setting Wheels

 Kawasaki J300 - Owner's Manual > Cleaning