
6LPA Series Operation Manual 9
PRODUCT OVERVIEW
YANMAR 6LPA SERIES
FEATURES AND
APPLICATIONS
The 6LPA series are four-stroke direct
injection diesel engines equipped with
liquid coolant systems.
The 6LPA-STP2 engines are equipped
with a marine gear (ZF63A1 or KMH50A,
KMH50V).
The 6LPA-STZP2 engines are equipped
with a stern drive (ZT370, Mercruiser
Bravo).
These engines are designed for pleasure
craft use.
The engines are equipped with a marine
gear or sail drive unit.
These engines are designed for pleasure
craft use.
It is recommended that new vessels be
propped so the engines can operate at 50
to 100 min
-1
above the fuel stop power
engine speed to allow for some added
weight and hull resistance.
Failure to do so can lead to reduced vessel
performance, lead to increased smoke
levels and cause permanent damage to
your engine.
The engine must be installed correctly with
coolant lines, exhaust gas lines and
electrical wiring. Any auxiliary equipment
attached to the engine should be easy to
use and accessible for service. To handle
the drive equipment, propulsion systems
(including the propeller) and other inboard
equipment, always observe the
instructions and cautions given in the
operation manuals supplied by the
shipyard and equipment manufacturers.
The 6LPA series engines are designed to
be operated at maximum throttle
(3800 min
-1
) for less than 5% of total
engine time (30 minutes out of every 10
hours) and cruising speed (2800 min
-1
or
less) for less than 90% of total engine time
(9 hours out of every 10 hours).
The laws of some countries may require
hull and engine inspections, depending on
the use, size and cruising area of the boat.
The installation, fitting and surveying of
this engine all require specialized
knowledge and engineering skills. See
Yanmars local subsidiary in your region or
your authorized Yanmar Marine dealer or
distributor.
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