Service and adjustment, How to adjust the carburetor – Husqvarna CT20 User Manual

Page 21

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SERVICE AND ADJUSTMENT

21

MS−3615MA

HOW TO ADJUST THE CARBURETOR

A dirty air cleaner will cause the engine to

run improperly or to smoke excessively. Be-

fore adjusting the carburetor, make sure the

air cleaner is clean. Never make unneces-

sary adjustments to the carburetor. The car-

buretor was set at the factory to operate

efficiently under most applications. However,

if adjustments are required, we recommend

you contact an Authorized Service Center. If

you feel that you are competent to make car-

buretor adjustment proceed as follows.

1. Lower the wheels to the transport posi-

tion.

2. Locate the idle speed adjustment

screw (see Figure 15). Turn the idle ad-

justment screw 1/4 turn counterclock-

wise (to the left).

3. Start the engine and release the throttle

control.

4. Tilt the cultivator back on the wheels or

stake so that the tines are off the ground.

In correct adjustment, the tines will not

rotate when the throttle is released. If the

tines turn, repeat step 2.

WARNING: The engine gover-

nor is set at the factory. Do not

change the governor setting.

Over speeding the engine above the fac-

tory setting can be dangerous. If you

think the engine governor needs an ad-

justment, contact an Authorized Service

Center.

Figure 15

Carburetor

Idle Speed

Adjustment Screw

Carburetor is located between the fuel

tank/air filter and the engine.

Engine Shown With Fuel Tank Removed

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