Yanmar 6SY Series Operation Manual page 64

ENGINE OPERATION
CAUTION
Observe the following
environmental operating
conditions to maintain engine
performance and avoid
premature engine wear:
• NEVER run the engine if the
ambient temperature is above
+40°C (+104°F) or below -16°C
(+5°F)
If the ambient temperature
◆
exceeds +40°C (+104°F) the
engine may overheat and
cause the engine oil to break
down.
If the ambient temperature
◆
falls below -16°C (+5°F)
rubber components such as
gaskets and seals will
harden causing premature
engine wear and damage.
See your authorized Yanmar
◆
marine engine dealer or
distributor if the engine will
be operated in either
temperature extreme.
• See your authorized Yanmar
marine dealer or distributor if
you need to operate the engine
at high altitudes. At high
altitudes the engine will lose
power, run rough, and produce
exhaust gases that exceed the
design specifications.
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CAUTION
Clean or replace the air cleaner
element if the air intake
restriction exceeds the value
listed in the Operation and
Service Manuals.
CAUTION
NEVER turn off the battery
switch (if equipped) or short the
battery cables during operation.
Damage to the electric system
will result.
CAUTION
Be sure to close the seacock.
Neglecting to close the seacock
could allow water to leak into the
boat and may cause it to sink.
6SY Operation Manual
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