Indmar Premium 400, Operator'S Manual, Page: 28 / 124

2-6
SECTION TWO
The Indmar fuel system uses high quality marine grade
components. These components will tolerate small amounts of
water without sustaining damage. Your engine will misfire and run
poorly, however, if water is in the fuel. Use caution when re-fueling
not to allow water to enter the fuel system. If you suspect your
fuel is water contaminated, consult your dealer and avoid that fuel
source in the future.
See your dealer for assistance with fuel system repairs.
BATTERY
Your engine uses a special 12-volt marine battery. If a replacement
is needed, use only a marine battery with minimum 800 cold
cranking amps at 0°F (-18°C).
Battery Switches
Most of today’s boats have significant electrical requirements
and are equipped with two batteries. The batteries are generally
controlled with a 4-position switch that allows the boat operator to
select which battery(s) will be connected to the starting/charging
system of the engine. The switches generally have 4 positions:
Off, 1, 2, 1 and 2.
Figure 2.1 – Battery Switch
Off Position , neither of the batteries are connected to the
engine’s starting or charging system. The switch should be in the
OFF position when the boat is not being used to ensure that the
batteries do not lose their charge. The switch should also be in the