Kohler COURAGE SV710-740 Manuale d'uso - Pagina 11
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NOTE: Operating the engine with a blocked grass
screen, dirty or plugged cooling fins, and/or
cooling shrouds removed, will cause engine
damage due to overheating.
Ignition System
These engines use an electronic Capacitive Discharge
(CD) ignition system. Other than periodically
checking/replacing the spark plugs, no maintenance,
timing, or adjustments are necessary or possible with
this system.
Check Spark Plugs
Every 100 hours of operation, remove the spark plugs,
check condition, and reset the gap or replace with new
plugs as necessary. The standard Courage spark plug
®
is a Champion
RC12YC (Kohler Part No.
12 132 02-S). RFI compliant engines use a Champion
XC12YC (Kohler Part No. 25 132 14-S) spark plug. A
high-performance spark plug, Champion
3071 (Kohler Part No. 25 132 12-S) is standard on
Courage PRO models. Equivalent alternate brand
plugs can also be used.
1. Before removing the spark plug, clean the area
around the base of the plug to keep dirt and
debris out of the engine.
2. Remove the plug and check its condition. Replace
the plug if worn or reuse is questionable.
NOTE: Do not clean the spark plug in a machine
using abrasive grit. Some grit could remain in
the spark plug and enter the engine causing
extensive wear and damage.
3. Check the gap using a wire feeler gauge. Adjust
the gap to 0.76 mm (0.030 in.) by carefully
bending the ground electrode. See Figure 14.
4. Reinstall the spark plug into the cylinder head.
Torque the spark plug to 24.4-29.8 N·m
(18-22 . lb.).
Wire Gauge
Spark Plug
Ground
Electrode
Figure 14. Servicing Spark Plug.
®
®
Platinum
0.76 mm
(0.030 in.) Gap
Battery Charging
WARNING: Explosive Gas!
Ba eries produce explosive hydrogen gas while being
charged. To prevent a fire or explosion, charge ba eries only
in well ventilated areas. Keep sparks, open flames, and other
sources of ignition away from the ba ery at all times. Keep
ba eries out of the reach of children. Remove all jewelry
when servicing ba eries.
Before disconnecting the negative (-) ground cable, make
sure all switches are OFF. If ON, a spark will occur at the
ground cable terminal which could cause an explosion if
hydrogen gas or gasoline vapors are present.
Fuel System
Fuel Filter
Some engines are equipped with an in-line fuel filter.
Periodically inspect the filter and replace with a
genuine Kohler filter every 100 operating hours.
Fuel Line
In compliance with CARB Tier III Emission
Regulations, these engines use Low Permeation
SAE 30 R7 rated fuel line; certified to meet CARB
requirements. Standard fuel line may not be used.
Order replacement hose by part number through a
Kohler Engine Service Dealer.
Figure 15. Low Permeation Fuel Line.
Carburetor Troubleshooting and
Adjustments
In compliance with government emission standards,
the carburetor is calibrated to deliver the correct
fuel-to-air mixture to the engine under all operating
conditions. The high speed mixture is set at the factory
and cannot be adjusted. The low idle fuel adjustment
screw (if equipped) is also set at the factory and
normally does not require adjustment. See Figure 16.
Engines in this series depending on the model and
application, may also be equipped with a Governed
Idle System.
If the engine is equipped with a Governed Idle
System, refer to Models with Governed Idle System
when performing any carburetor adjustment, as an
additional step to the listed procedure(s) is required.
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