Kawasaki Ninja

Kawasaki Ninja Owners Manual: Battery

Kawasaki Ninja Owners Manual / Maintenance and adjustment / 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.

The sealing strip should not be pulled off once the specified electrolyte has been installed in the battery for initial service.

However, in order to maximize battery life and ensure that it will provide the power needed to start the motorcycle you must properly maintain the battery’s charge. When used regularly, the charging system in the motorcycle helps keep the battery fully charged. If your motorcycle is only used occasionally or for short periods of time, the battery is more likely to discharge.

Due to their internal composition, batteries continually self discharge.

The discharge rate depends on the type of battery and ambient temperature.

As temperature rises, so does the discharge rate. Every 15°C (59°F) doubles the rate.

Electrical accessories, such as digital clocks and computer memory, also draw current from the battery even when the key is switched off. Due to a combination of such “key-off” draws and hot temperature, a battery can go from fully charged to completely discharged in a matter of days.


In extremely cold weather the fluid in an inadequately charged battery can easily freeze, which can crack the case and buckle the plates. A fully charged battery can withstand sub-freezing temperature with no damage.

Tire Wear, Damage
As the tire tread wears down, the tire becomes more susceptible to puncture and failure. An accepted estimate is that 90% of all tire failures occur during the last 10% of tread life (90% worn). ...

Battery Sulfation
A common cause of battery failure is sulfation. Sulfation occurs when the battery is left in a discharged condition for an extended time. Sulfate is a normal by product of the chemical reactions ...

Other materials:

Rebound Damping Force Adjustment
To adjust the rebound damping force, turn the rebound damping adjuster [A]. The standard adjuster setting is the 3 3/4 turns out from the fully clockwise position. WARNINGIf both adjusters are not adjusted equally, handling may be impaired and a hazardous condition may res ...

Location of parts
Clutch Lever Left Handlebar Switches Rebound Damping Force Adjuster (Front Fork) Compression damping force adjuster (Front Fork) Meter Instruments Brake Fluid Reservoir (Front) Right Handlebar Switches Front Brake Lever Throttle Grip Ignition Switch/Steering Lock Elect ...

Throttle Control System
Check the throttle grip play each day before riding the motorcycle, and carry out maintenance and adjustments in accordance with the Periodic Maintenance Chart. Adjust it if necessary. Throttle Grip The throttle grip controls the butterfly valves in the throttle body. If the throttle grip ha ...