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SECTION 1
SAFETY AND GENERAL INFORMATION
Oil Filter
Some engines are equipped with an oil filter. Replace
the oil filter every other oil change, in accordance with
the "Oil Change Intervals" table. Always use a genu-
ine Kohler replacement oil filter.
Refer to the "Periodic Maintenance" Section for de-
tailed oil checking and changing procedures.
FUEL RECOMMENDATIONS
A
WARNING:
Explosive Fuels!
Gasoline Is extremely flammable, and its vapors
can explode if ignited. Store gasoline only in ap-
proved containers, in well-ventilated, unoccupied
buildings, away from sparks or flames. Do not fill
fuel tank while the engine is hot or running since
Spilled fuel could ignite if it comes in contact with
hot parts or sparks from ignition. Do not start en-
gine near spilled fuel; wipe up spills immediately.
Never use gasoline as a cleaning agent.
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 rec-
ommended. Such a container is easier to handle and
helps eliminate spillage during refueling.
Do not overfill the fuel tank. Leave room for the fuel to
expand.
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.
Fuel Type
For best results, use only clean, fresh, unleaded gaso-
line 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 gasoline may
be used in areas where unleaded is not available and
exhaust emissions are not regulated.
Be aware how-
ever, that the cylinder head will require more frequent
service.
Gasollne/Alcohol blends
Gasohol (up to 1096 ethyl alcohol, 9096 unleaded
gasoline by volume) is approved as a fuel for Kohler
engines. Other gasoline/alcohol blends are not
approved.
Gasoline/Ether blends
Methyl Tertiary Butyl Ether (MTBE) and unleaded gaso-
line blends (up to maximum of 15% MTBE by volume)
are approved as a fuel for Kohler engines. Other
gasoline/ether blends are not approved.
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Figure 1-3. Overall Dimensions- -Model M18 and M20.
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