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12
Fuel Filter
Some engines are equipped with an in-line fuel filter.
Periodically inspect the filter and replace when dirty. Replacement is recommended annually or every 100 hours. Use a genuine Kohler filter.
Fuel Line
In compliance with CARB Tier III Emission
Regulations, engines with a Family identification number beginning with “6” or greater (see Figure 13), must 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 13. Family Number Location.
Carburetor Troubleshooting and
Adjustments
NOTE: Carburetor adjustments should be made
only after the engine has warmed up.
These engines are equipped with a Walbro fixed main
jet carburetor. See Figure 14. Walbro carburetors have a low idle speed adjustment screw, and either a fixed or low idle fuel adjusting needle with a limiter cap.
The carburetor is designed to deliver the correct fuel-
to-air mixture to the engine under all operating conditions. The main fuel jet is calibrated at the factory and is not adjustable. The low idle fuel adjusting needle is also set at the factory and normally does not need adjustment.
NOTE: To ensure correct engine operation at
altitudes above 1525 meters (5000 ft.), it may
be necessary to have an authorized Kohler dealer install a special high-altitude jet kit in the carburetor. If a high-altitude kit has been installed, the engine must be reconverted to the original jet size, before it is operated at lower altitudes, or overheating and engine damage can result.
Troubleshooting
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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 the 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
the filter if necessary.
• Make sure fuel is reaching the 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 components are fastened securely.
If, after checking the items listed above, the engine is
hard to start, runs roughly, or stalls at low idle speed, it may be necessary to adjust or service the carburetor.
Carburetor Adjustment
NOTE: These engines may have a fixed idle or limiter
cap on the idle fuel adjusting needle. Step 2
can only be performed within the limits allowed by the cap.
1. Start the engine and run at half throttle for 5 to
10 minutes to warm up. The engine must be
warm before doing steps 2 and 3.
KOHLER CO. KOHLER, WISCONSIN USA
EMISSION COMPLIANCE PERIOD:
EPA:
CARB:
CERTIFIED ON:
REFER TO OWNER'S MANUAL FOR HP RATING, SAFETY, MAINTENANCE AND ADJUSTMENTS Kohler Sv530 Oil Filter
1-800-544-2444 www.kohlerengines.com
FAMILY
6 KHXS.XXXXGB
TYPE APP
DISPL. (CC) MODEL NO. SPEC. NO. SERIAL NO. BUILD DATE OEM PROD. NO.
IMPORTANT ENGINE INFORMATION
THIS ENGINE MEETS U.S. EPA AND CA 2005 AND LATER AND EC STAGE II (SN:4) EMISSION REGS FOR SI SMALL OFF–ROAD ENGINES
N11236
Low Idle Speed
Adjusting Screw
Low Idle Fuel Adjusting Needle with Limiter
Figure 14. Carburetor.
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This manual is related to the following products:
Courage SV540, Courage SV610, Courage SV620, Courage SV590, Courage SV530, Courage SV480, Courage SV470Kohler Courage 17 Engine Manual
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