McCulloch MAC 250 Instruction Manual download pdf (Page 10)

10

The carburetor has been carefully set at the

factory.Adjustments maybenecessary ifyou

notice any of the following conditions:

S Engine will not idle when the throttle is re-

leased.

Make adjustments with the unit supported so

the cutting attachment is off the ground and

will not make contact with any object. Hold

theunit by handwhilerunningandmakingad-

justments. Keep all parts of your body away

from the cutting attachment and muffler.

Idle Speed Adjustment

Allowenginetoidle.Adjustspeeduntilengine

runs without stalling (idle speed too slow).

S Turn idle speed screw clockwise to in-

creaseenginespeedifenginestalls ordies.

S Turn idle speed screw counterclockwise to

decrease engine speed.

Air Filter Cover

Idle Speed Screw

Ifyourequirefurtherassistanceorareunsure

about performing this procedure, contact an

authorized service dealer.

STORAGE

WARNING: Perform the following

steps after each use:

S Allowenginetocoolbeforestoring or trans-

porting.

S Store unit and fuel in a well ventilated area

where fuel vapors cannot reach sparks or

open flames from water heaters, electric

motors or switches, furnaces, etc.

S Empty fuel tank beforestoring or transport-

ing the unit.

S Store unit and fuel well out of the reach of

children.

S Store unit with all guards in place. Position

unit so that any sharp object cannot acci-

dentally cause injury .

SEASONAL STORAGE

Prepare unitfor storage at endof season or if

it will not be used for 30 days or more.

If your unit is to be stored for a period of time:

S Clean the entire unit before lengthy stor-

age.

S Store in a clean dry area.

S Lightly oil external metal surfaces.

ENGINE

S Remove spark plugand pour 1 teaspoonof

40:1,2-cycleengine oil(air cooled)through

the spark plug opening. Slowly pull the

starter rope 8 to 10 times to distribute oil.

S Replace spark plug with newone ofrecom-

mended type and heat range.

S Clean air filter.

S Check entire unit for loose screws, nuts,

and bolts. Replace any damaged, broken,

or worn parts.

S At the beginning of the next season, use

onlyfreshfuelhavingthepropergasolineto

oil ratio.

OTHER

S Do not store gasoline from one season to

another.

S Replace your gasolinecanif itstarts torust.

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