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FUEL SYSTEM
This engine is designed to operate on leaded
gasoline with a 93 minimum octane rating or on
unleaded or low lead gasoline with a 91 minimum
octane rating (Research Method).
The
use of unleaded gasoline will lengthen spark
plug and valve life, maintain engine performance
longer, and reduce rust and corrosion of engine
wh ile stored.
The fuel tank filler cap has an air vent. Keep the
vent open at all times to assure proper flow of thefuel.
A CAUTION! Never remove the fuel tank cap
or fill the fuel tank when the engine is
running, hot, or when near an open flame.
Do not smoke when working around inflammable
fuel, as the air around the tractor is mixed with a
highly explosive vapor. When pouring fuel, keep
the container or hose nozzle in contact with the
metal of the fuel tank to avoid the possibility of an
electric spark igniting the gas. Do not spill gasoline
on a hot engine.
International Cub Cadet 86 Tractor.
FUEL SHUT-OFF VALVE
Be sure the shut-off valve under the fuel tank isopen.
Screw out the needle stem (shut-off valve)
until the seat on the stem is tight against the stop
to prevent leakage or seepage when the valve is in
its full-open position.
CARBURETOR ADJUSTMENTS
The carburetor is adjusted at the factory and under
normal operation conditions it will not require
readjusting. However, if the engine does not
operate properly, it is recommended a new air
cleaner be installed before performing carburetor
adjustments. If this adjustment has been disturbed
for any reason, proceed as follows:
1. Governor control rod2.
Idle adjustment screw3.
Throttle stop screw4.
High speed adjustment screw5.
Fuel shut-off valve6.
Fuel line7.
Air cleaner
International Cub Cadet 108, 128, 129,
149, and 169 Tractors.
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