Carburetor Adjustments - McCulloch GB 320 Manuel D'utilisation

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A dirty air filter decreases engine perform-

ance and increases fuel consumption and

harmful emissions. Always clean after every

5 hours of operation or yearly, whichever

comes first.

1. Clean the cover and the area around it to

keep debris from falling into the carburetor

chamber when the cover is removed.

NOTE:

Move choke lever to RUN position

before opening air filter cover.

2. Remove parts as illustrated.

NOTE:

Do not clean filter in gasoline or

other flammable solvent. Doing so can

create a fire hazard or produce harmful

evaporative emissions.

3. Wash the filter in soap and water.

4. Allow filter to dry.

5. Apply a few drops of oil to the filter;

squeeze filter to distribute oil.

6. Replace parts.

REPLACE SPARK PLUG

Replace spark plug each year to ensure the

engine starts easier and runs better. Set

spark plug gap at 0.6 mm. Ignition timing is

fixed, nonadjustable.

1. Twist, then pull off spark plug boot.

2. Remove spark plug from cylinder and dis-

card.

3. Replace with Champion RCJ-6Y spark

plug and tighten securely with a 19 mm

socket wrench.

4. Reinstall the spark plug boot.

REPLACE FUEL FILTER

To replace fuel filter, drain unit by running it dry of

fuel, then remove fuel cap/retainer assembly

from tank. Pull filter from tank and remove it from

fuel line. Install new fuel filter on fuel line; reinstall

parts.

Fuel Filter

Fuel Line

MAINTENANCE

CHECK MUFFLER MOUNTING

SCREWS

Once each year, ensure muffler mounting

screws are secure and tightened properly to

prevent damage.