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:

Gear Position Indicator
The gear position indicator shows the corresponding gear positions where the transmission is shifted. For example, when the transmission is in 6th gear, “6” is displayed. A. Gear Position Indicator (Normal mode) NOTE If the gear position is in the neutral position, the gear positio ...

Brake Hose and Pipe Damage and Installation Condition Inspection
Inspect the brake hoses, pipes and fittings for deterioration, cracks and signs of leakage. The high pressure inside the brake line can cause fluid to leak [A] or the hose to burst if the line is not properly maintained. Bend and twist the rubber hose while examining it. Replace the ...

Air Cleaner Housing Assembly
Install the ducts to the air cleaner housing. Fit the projections [A] of the duct into the slits [B] on the air cleaner housing. Tighten the screws [A]. Torque - Air Cleaner Housing Duct Screws: 1.1 N·m (0.11 kgf·m, 10 in·lb) Install: Air Cleaner Gasket [A] Duct [B] ...