Gasoline Engine - International Harvester Company CUB Operator's Manual

GASOLINE ENGINE
Before attempting to start or operate the tractor, be sure you
review the instructions for the new tractor and thoroughly famil-
iarize your-self with the instruments and controls.
This engine is designed to operate on
gasolin~
with a 90 minimum octane rating (Research Method).
FUEL SYSTEM
lIIust. 9
Fuel system and controls.
Be sure the shut-off valve on the fuel
strainer under the gasoline tank is open. To
prevent leakage or seepage when the valve is
in its full-open position, screw out the needle
stem (shut-off valve) until the seat on the stem
is tight against the stop.
STARTING THE ENGINE (12-Volt System)
1.
Put the gearshift lever in the neutral
position.
See lIIust. 5.
2. Pull the choke control button all the way
out.
When using the choke, avoid overchoking,
as excessive use of the choke will flood the
engine, making it hard to start. The use of
the choke for starting will vary, depending on
temperature and altitude.
3. Advance the engine speed control lever
one-third. See lIIust. SA.
4. Disengage the engine clutch.
5. Turn the ignition key clockwise to a
horizontal position. Press the push button
starting switch and release it as soon as the
engine starts; however, do not operate the
cranking motor for more than 30 seconds at
anyone time. If the engine does not start
within this time, release the push button
9
starting switch and wait a minute or two;
then try again.
Note:
Never operate the cranking motor while
the engine is operating.
6. Slowly release the clutch after the engine
starts.
STARTING THE ENGINE (6-Volt System)
1. Put the gearshift lever in the neutral
position.
See lIIust. 5.
2.
Pull the choke rod all the way out.
See
III ust. 4A.
I
Avoid overchoking, as excessive use of the
choke will flood the engine, making it hard to
start. The use of the choke for starting will
vary, depending on temperature and altitude.
3. Advance the engine speed control lever
one third.
See lIIust. SA.
4. Pull out on the ignition switch button.
See IIlust. 4A.
5.
Disengage the engine clutch by pressing
down on the clutch pedal. See IIlust. 4A.
6. -
Pull out on the starting switch control rod
(1IIust. 4A) and release it as soon as the engine
starts. However, do not operate the cranking
motor for more than 30 seconds at anyone
time. If the engine does not start within this
time, release the starting switch control rod
and wait a minute or two; then try again.
lIIust.9A
Closing the carburetor choke lever.
{Tractors without cranking motor>..