Yanmar 4LHA-HTP Operation Manual page 51

• Check the level of fluid in the battery.
When the amount of fluid nears the lower limit, fill
with battery fluid (available in the market) to the
upper limit. If operation continues with insufficient
battery fluid, the battery life is shortened, and the
battery may overheat and explode.
• Battery fluid tends to evaporate more quickly in
the summer, and the fluid level should be
checked earlier than the specified times.
•If the engine cranking speed is so slow that the
engine does not start up, recharge the battery.
• If the engine still will not start after charging,
replace the battery.
^-[NOTICE]—
The capacity of the specified alternator and battery is sufficient for regular operation,
however, the capacity may be insufficient, if they are used for other purposes such as
lights inside the boat, etc. Consult your Yanmar dealer or distributor.
Local supply
Upper. Level
Lower Level
Follow the instructions and precautions in
the manual from the battery maker.
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Battery Fluid