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ENGINE ADJUSTMENTS
SPARK PLUGS
The spark plugs should be cleaned and re-gapped after the
first 50 hour break-in period, then inspected every 250 hours
thereafter and replaced as needed.
A
WARNING:
Do not remove the spark plugs while
the engine is hot. Allow the engine to cool before
removing them.
SPARK PLUG GAP: 0.032 - 0.03510. (0.8 - O.9mm).
SPARK PLUG TORQUE: 11-15Ib-ft (15- 26 Nm).
NOTE:
Loctite Anti-Seize applied to the threaded ponion of
the spark plugs
will
retard corrosion, making future removal
of the spark plugs easier.
GAP
-,tL-_
~
INSPECT FOR
WEAR & CARBON'"
INSPECT FOR
DAMAGE
INSPECnNG
THE SPARK
PWGS
1;=~'---.-f'LI'Cf'V
FOR
CHOKE SOLENOID
DETERIORATION
AND DAMAGE
The choke solenoid is a 12 volt
DC
operated unit that
is an integral part of the carburetor. When the engine is cold,
extra fuel is supplied to the engine. 'The choke is controlled
by the ignition control module and requires no adjustments.
ZINC ANODE [Raw Water Cooled Models]
The zinc anode is located just below the thermostat cover
and next to the oil filter. The purpose of the zinc anode is to
sacrifice itself to electrolysis action taking place in the raw
water cooling circuit, thereby reducing the effects of
electrolysis on other components of the system. The
condition of the zinc anode should be checked monthly and
the anode cleaned or replaced as required. Spare anodes
should be carried on board.
NOTE:
Refer to the Cooling System
pages for Fresh Water Cooled Thermostat
and Zinc Anode assemblies.
THERMOSTAT [Raw Water Cooled Models]
A thennostat controls the coolant temperature as the raw water
continuously flows through the closed cooling cirCUit. When
the engine is first started, the closed thermostat prevents the
water from flowing (some water is by-passed arOUnd the
thermostat to provide coolant circulation in the engine block).
As the engine warms up, the thermostat gradually opens. The
thermostat is accessible and can be checked, cleaned, or
replaced easily.
Carry
a spare thermostat and gasket.
If you suspect a faulty thermostat, place it in a pan of water
and bring to a boil. A working thermostat should open when
heated and close when cold.
ZINC ANOOE
THE GASKET IS SEALED TO
THE CASTING AND, UNLESS
DAMAGED. CAN BE LEFT IN
POSITION. ADD SEALANT TO
THE GASKET SURFACE WHEN
REASSEMBLING THE COVER.
GASKET
APPLY SEALANT
'. WHEN INSTALLING
THERMOSTAT
ASSEMBLY
ZINC ANODE
AND GASkET
Engines
&
Generators
41
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