Kohler Courage SV600 User Manual download pdf (Page 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

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

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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Kohler Courage SV600 User Manual Page 12

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