Kohler K9J Service Manual page 7

Change Oil
For a new engine, change oil
aft~r
the first 5
hours of operation. Change oil every 25 hours of
operation thereafter.
For an overhauled engine or one rebuilt with a new
shortblock or miniblock, use straight 30-weight
Service Class SF or SG oil for the first 5 hours of
operation. Change the oil after this initial run-in
period. Refill with Service Class SF or SG oil as
specified in the table. Change oil every 25 operat-
ing hours thereafter.
FUEL RECOMMENDATIONS
£
WARNING: Explosive Fuel!
Gasoline may be present in the carburetor and fuel
system. Gasoline is extremely flammable and it can
explode if ignited. Keep sparks, open flames, and
other sources of ignition away from the engine. Dis-
connect and ground the spark plug lead to prevent
the possibility of sparks from the ignition system.
General Recommendations
Purchase gasoline in small quantities and store in
clean, approved containers. A container with a ca-
pacity of 2 gallons or less with a pouring spout is
recommended. Such a container is easier to handle
and helps eliminate spoilage during refueling.
Do not use gasoline left over from the previous sea-
son, to minimize gum deposits in your fuel system
and to insure easy starting.
Do not add oil to the gasoline.
Do not overfill the fuel tank. Leave room tor the
fuel to expand.
Fuel Type
For best results, use only clean, fresh, unleaded
gasoline with a pump sticker octane rating of 87 or
higher. In countries using the Research method, it
should be 90 octane minimum.
Unleaded gasoline is recommended, as it leaves
less combustion chamber deposits. Leaded gaso-
line may be used in areas where unleaded is not
available and exhaust emissions are not regulated.
Be aware however, that the cylinder head will re-
quire more frequent service.
Gasoline/ Alcohol blends
Gasohol (up to 10% ethyl alcohol, 90% unleaded
gasoline by volume) is approved as a fuel for Kohler
engines. Other gasoline/alcohol blends are not ap-
proved.
Gasoline/Ether blends
Methyl Tertiary Butyl Ether (MTBE) and unleaded
gasoline blends (up to a maximum of 15% MTBE by
volume) are approved as a fuel for Kohler engines.
Other gasoline/ether blends are not approved.
OIL REFILL QUANTITIES (U.S. STANDARD QUARTS)
K91 K141, K161, K181 K241, K301, K321, K341 K241 A, K301 A, K321 A, K341 A
1/2 Quart 1 Quart
2 Quarts
1 Quart*
(After refilling, always check oil level -- DO NOT OVERFILL)
* A-type oil pan capacity varies from 1 to 1-3/4 quarts. On these add 1 quart of oil, check
level, then add oil as necessary to bring up to full level.
Figure 1-4.
1.5