Kohler Courage PRO SV830 Owner's Manual - Page 12

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Low Idle

Mixture Screw

Figure 16. Carburetor Details.

Low Idle Mixture Screw

Idle Speed (RPM)

Adjustment Screw

Element

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 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 element components are fastened

securely.

If, a er 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.

Adjust Carburetor

Idle Speed

NOTE: Some engines may have a ﬁxed (capped)

(RPM)

Adjustment

Screw

Fuel Solenoid

1. Idle Fuel Adjustment: with the engine stopped,

NOTE: The tip of the low idle fuel adjusting screw is

2. Preliminary Se ings: Turn the adjusting screw

3. Start the engine and run at half thro le for 5 to 10

4. Low Idle Speed (RPM) Se ing: Place the thro le

*NOTE: The actual low idle speed depends on

5. If proper operation is not restored a er adjusting,

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 the lower adjustment tab of the main bracket.

See Figure 18.

idle fuel adjusting screw or limiter cap. On

these engines, do not a empt 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.

turn the low idle fuel adjusting screw in

(clockwise) until it bo oms lightly. See Figures 16

and 17.

tapered to critical dimensions. Damage to the

needle tip and the seat in carburetor body will

result if the needle is forced.

out (counterclockwise) from lightly bo omed

2-1/4 turns.

minutes to warm up. The engine must be warm

before making ﬁnal se ings (step 4).

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.

the application – refer to equipment

manufacturer's recommendations. The

recommended low idle speed for basic engines

is 1200 RPM. To ensure best results when

se ing the low idle fuel needle, the low idle

speed must not exceed 1200 RPM

(± 75 RPM).

carburetor servicing by an authorized Kohler

Engine Service Dealer may be required.