Kohler K161 User Manual download pdf (Page 12)

4 .

5 .

Start the engine and run at hatf throttle for five to

ten minutes to warm up. The engine must be

warm before making final settings.

Main Fuel Needle Setting: This adjustment is

required only for adjustable main jet carburetors.

If the carburetor is a fixed main jet type, disregard

this setting.

Place the throttle into the Vast” position.

Turn the adjusting needle In (clockwise). The

engine speed may increase, then it will decrease

as the needle is turned in (lean). Note the

position of the needle. Back the needle out

approximately l/8 to i/4 turn. See figure below

for best main fuel performance.

6 .

Back out

Appx. 118

to 114

Lean

turn.

Lean

Optimum Main Fuel Setting.

Low Idle Fuel Needle Setting: Place the throttle

into the “idle” or %loW position.

Turn the adjusting needle in (clockwise). The

engine speed may increase, then it will decrease

as the needle is turned in (lean). Note the

position of the needle.

Back out

Appx. 118

to 114

Lean

turn.

Lean

{

---

Optimum Low Idle Fuel Settlng.

Low Idle Speed Setting: Place the throttle

control into the “idle” or %lown position. Set the

low idle speed to 1200 RPM* (+ or - 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 the equipment

manufacturer’s instructions for specific low

idle speed settings. To ensure best results

when setting the low idle fuel needle, the

low idle speed must not exceed 1500 RPM.

FUEL FILTER

Some engines are equipped with an in-line fuel filter.

Visually inspect the filter periodically and replace

when dirty with a genuine Kohler filter.

Back the needle out approximately i/8 to l/4 turn.

See figure below for best low idle fuel

performance.

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Kohler K161 User Manual Page 12

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