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FUEL
For best results, use only cle�ln, fresh,
regular grade unleaded gasoline with
a pump sticker octane rating of 87 or
higher. In countries using the Re
search method, it should be 90 octane
minimum.
•
•
Unleaded is recommended since it
leaves less combustion chamber de
pOSits. Regular grade leaded gasoline
may also be used; however, be aware
that the combustion chamber and
cylinder head will require more fre
quent service. See "Required Main
4.
tenance" on page
Always use fresh gasoline. Fresh
gasoline is blended for the season
and reduces gum depOSits which
could clog the fuel system. Do not use
gasoline left over from the previous
season.
Do not add oil to the gasoline.
Do not overfill the fuel tank. Leave
room for the fuel to expand.
A
WARNING: ExplosIve Fuel
Gasoline is extremely flammable, and
its vapors can explode if ignited. Store
gasoline only in approved containers,
in unoccupied buildings, away from
sparks or flames. Do not add gasoline
while the engine is hot or running, or
start the engine near spilled gasoline.
Never use gasoline as a cleaning
agent.
OIL
Using the proper type and weight
crankcase oil is extremely important
as is checking oil daily and changing
oil regularly. (See "Required Main
4.)
tenance" on page
the correct oil or using dirty oil causes
premature engine wear and failure.
Before each start, make sure the
crankcase is filled with proper type
and quantity of oil.
011 Type
Use high-quality detergent oil of API
(American Petroleum Institute) ser
vice class SF. Select the viscosity
based on the air temperature at the
time of operation as shown in the
table.
Straight 3D-weight oil is recommend
ed. If multiviscosity oil is used in
temperatures above 32°F (DOC), oil
consumption and combustion de
posits will increase.
2
CAUTION: Using other than service
class SF oil or extending ';"lil change
interval� longer than ,
could cause ef'l�,
not covered by the engint; , arranty.
A logo or symt-c!
identifies the API service
SAE viscosity grad3.
Checking Oil
Check oil B EF�IlE
follows:
MfI.
l< �
1.
..
an:"
maka SUi" the engine is cool and
the oil has had time to drain into
the sump.
2. Before removing the oil fill cap/dip
stick, clean the area around the fill
tube to keep dirt and debris out of
the engine.
3. Remove the oil fill cap/dipstick,
and wipe oil off. Reinsert the dip
stick and push it all the way down
into tube. Remove the dipstick and
check the level.
4.
Add the proper type of oil if the
level is low. Bring the level up to,
but not over, the "F" mark on the
dipstick. Always check the level on
the dipstick before adding more
oil.
CAUTION: Do not operate the engine
with the oil level below "L" mark or
over "F" mark.
Failure to use
'.
.
., ''Tlmended
"!1ich is
j
h.;
L
diners
oil
O�
c·_
.
.
�nd
c:·:,
;
:;
.
USE as
=
'Y
the engine is stopped
5'1"1')
· I n a level surface. Also
Recommended
SAE
Oil Sentry
So m e engines are equipped with op
tional Oil Sentry oil level monitor. If
the oil level gets low, Oil Sentry will
either shut down the engine or trigger
a warning signal, depending on the
application.
CAUTION: Make sure the oil level is
checked BEFORE EACH USE and
maintained up to the "F" mark on
dipstick. This includes engines equip
ped with Oil Sentry
•
Changing 011
For a new engine, change oil after the
first 5 hours of operation. Change oil
every 25 operating hours thereafter.
Drain oil while the engine is warm
from operation. The oil will flow freely
and carry away more impurities. Drain
oil as follows:
1. Remove the oil drain plug and
dipstick. Tilt the engine slightly
towards the oil drain to obtain
better d�ainage.
2. Reinstall the drain plug. Make sure
it is tightened securely.
3. Fill with new oil of the proper type
to the "F" mark on the dipstick.
Always check the level on the dip
\l
stick
efore adding more oil.
Make sure the engine is level when
filling and checking oil.
Operating
Range
�
011 Viscosity Grades
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