6
Operating Instructions
Also read the operating instructions of the equipment
this engine powers.
Pre-Start Checklist
• Check oil level. Add oil if low. Do not overfill.
• Check fuel level. Add fuel if low.
• Check cooling air intake areas and external
surfaces of engine. Make sure they are clean and
unobstructed.
• Check that the air cleaner components and all
shrouds, equipment covers, and guards are in
place and securely fastened.
• Check that any clutches or transmissions are
disengaged or placed in neutral. This is especially
important on equipment with hydrostatic drive. The
shift lever must be exactly in neutral to prevent
resistance which could keep the engine from
starting.
WARNING: Lethal Exhaust Gases!
Engine exhaust gases contain poisonous carbon
monoxide. Carbon monoxide is odorless, colorless,
and can cause death if inhaled. Avoid inhaling exhaust
fumes, and never run the engine in a closed building or
confined area.
Cold Weather Starting Hints
1. Be sure to use the proper oil for the temperature
expected. See Figure 2 on page 4.
2. Declutch all possible external loads.
3. A warm battery has much more starting capacity
than a cold battery.
EPA
CARB
Category C
250 Hours
Moderate
125 Hours
Category B
500 Hours
Intermediate
250 Hours
Category A
1000 Hours
Extended
500 Hours
The Emission Compliance Period referred to on the
Emission Control or Air Index label indicates the number
of operating hours for which the engine has been shown
to meet Federal and CARB emission requirements. The
following table provides the Engine Compliance Period
(in hours) associated with the category descriptor found
on the certification label.
Emission Compliance Period (Hours)
Refer to certification label for engine displacement.
Exhaust Emission Control System for models CH410,
CH430, CH15, CH450 is EM.
4. Use fresh winter grade fuel. NOTE: Winter grade
gasoline has higher volatility to improve starting.
Do not use gasoline left over from summer.
Starting
1. For a Cold Engine – Place the throttle control
midway between the slow and fast positions.
Place the choke control into the on position.
For a Warm Engine (normal operating
temperatures) – Place the throttle/choke control
midway between the slow and fast positions.
Place the choke into the on position. See Figure 5.
Choke
Off — On
Figure 5. Throttle and Choke Positions for Starting
Engine.
2. Start the engine as follows:
For a Retractable Start Engine – SLOWLY pull
the starter handle until just past compression –
STOP! Return starter handle, pull firmly with a
smooth, steady motion to start. Pull the handle
straight out to avoid excessive rope wear from the
starter rope guide.
Extend the starting rope periodically and check its
condition. If the rope is frayed, have it replaced
immediately by your Kohler Engine Service
Dealer.
WARNING: Accidental Starts!
Before extending and checking the retractable starter
rope, remove the spark plug lead to prevent the engine
from starting accidentally. Make sure the equipment is
in neutral.
For an Electric Start Engine – Activate the
starter switch. Release the switch as soon as the
engine starts.
NOTE: Do not crank the engine continuously for
more than 10 seconds at a time. If the
engine does not start, allow a 60 second
cool down period between starting
attempts. Failure to follow these
guidelines can burn out the starter motor.
Throttle
Fast
On
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