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5.1
Section 5
Fuel System and Governor
5
Section 5
Fuel System and Governor
CS4-12
•
Do not use gasoline left over from the previous
season, 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 for 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 fuel rating
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.
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
approved.
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.
Fuel Filters
Serviceable screen filters are located within the inlet of
the fuel tank and the shut-off valve. Periodically
inspect and clean or replace as required.
Description
WARNING: Explosive Fuel!
Gasoline is extremely flammable and its vapors can
explode if ignited. Store gasoline only in approved
containers, in well ventilated, unoccupied buildings,
away from sparks or flames. Do not fill the 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 the engine near
spilled fuel. Never use gasoline as a cleaning agent.
Fuel System Components
The typical fuel system includes the following
components:
•
Fuel Tank
•
Shut-off Valve with Screen Filter
•
Fuel Tank Inlet Filter
•
Carburetor
•
Fuel Line
Operation
The fuel from the tank is moved through the shut-off
valve/screen filter and fuel lines by gravity.
Fuel then enters the carburetor float bowl and is drawn
into the carburetor throat. There, the fuel is mixed with
air. This fuel-air mixture is then burned in the engine
combustion chamber.
Fuel Recommendations
General Recommendations
Purchase gasoline in small quantities and store in
clean, approved containers. A container with a capacity
of 2 gallons or less with a pouring spout is
recommended. Such a container is easier to handle
and helps eliminate spillage during refueling.
Summary of Contents for COMMAND PRO CS10
Page 1: ...SERVICE MANUAL COMMAND PRO CS SERIES 4 12 HP HORIZONTAL CRANKSHAFT...
Page 20: ...1 18 Section 1 Safety and General Information...
Page 24: ...2 4 Section 2 Special Tools...
Page 48: ...6 4 Section 6 Lubrication System...
Page 54: ...7 6 Section 7 Retractable Starter...
Page 84: ...8 30 Section 8 Electrical System and Components...
Page 106: ...9 22 Section 9 Disassembly...