Kohler COURAGE SV710-740 Instrukcja obsługi - Strona 12
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If, afterchecking t heitems listedabove, theengine is
hardtostart, r unsroughly, o r stallsatlowidlespeed, it
maybenecessary to adjust o r service thecarburetor.
Adjust Carburetor
NOTE:
Some engines may have a fixed (capped)
idle fuel adjusting
screw or limiter cap. On
these engines, do not attempt steps 1 and 2
below. Proceed
directly to Step 3. On limiter
equipped
models,
adjustment
can only be
performed
within the limits allowed by the
cap.
Figure 16. Carburetor
Details.
Figure 17. Carburetor
Adjustment
Access
Locations (Latch Removed
For Clarity).
Troubleshooting
If engine troubles
are experienced
that appear to be
fuel system related, check the following
areas before
adjusting
the carburetor.
*
Make sure the fuel tank is filled with clean, fresh
gasoline.
*
Make sure the fuel tank cap vent is not blocked
and that it is operating
properly.
*
If tile fuel tank is equipped
with a shut-off valve,
make sure it is open.
*
If the engine is equipped
with an in-line fuel filter,
make sure it is clean and unobstructed.
Replace
tile filter if necessary.
Make sure fuel is reaching
tile carburetor.
This
includes
checking the fuel lines and fuel pump
for restrictions
or faulty components,
replace as
necessary.
*
Make sure the air cleaner element
is clean and
all air cleaner element components
are fastened
securely.
.
Idle Fuel Adjustment:
with the engine stopped,
turn tile low idle fuel adjusting
screw in
(clockwise) until it bottoms
lightly. See Figures 16
and 17.
NOTE:
The tip of the low idle fuel adjusting
screw is
tapered
to critical dimensions.
Damage
to the
needle tip and the seat in carburetor
body will
result if the needle is forced.
2. Preliminary
Settings:
Turn the adjusting
screw
out (counterclockwise)
from lightly bottomed
2-1/4 turns.
3. Start the engine and run at half throttle for 5 to 10
minutes
to warm up. The engine must be warm
before making
final settings
(step 4).
.
Low Idle Speed (RPM) Setting: Place the throttle
control into the idle or slow position.
Set the low
idle speed to 1200 RPM* (+ 75 RPM) by turning
the
low idle speed adjusting
screw in or out. Check
the speed using a tachometer.
*NOTE: The actual low idle speed depends
on
the application
- refer to equipment
manufacturer's
recommendations.
The
recommended
low idle speed for basic engines
is 1200 RPM. To ensure best results when
setting the low idle fuel needle, the low idle
speed must not exceed 1200 RPM
(+ 75 RPM).
5. if proper
operation
is not restored
after adjusting,
carburetor
servicing by an authorized
Kohler
Engine Service Dealer may be required.
Models with Governed Idle System
An optional
governed
idle control system is supplied
on some engines. The purpose
of this system is to
maintain
a desired idle speed regardless
of ambient
conditions
(temperature,
parasitic
load, etc.) that may
change. Engines with this feature contain a small
secondary
spring connected
between
the governor
lever and tile lower adjustment
tab of the main bracket.
See Figure 18.
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