Craftsman 536.7975 manual Custo, Engine, Air Cleaner Maintenance, Spark Plug Maintenance

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CUSTO

ENGINE

AIR CLEANER MAINTENANCE

The air cleaner filter should be cleaned and reoiled after

every 25 hours of use Clean more often under dusty conditions

IMPORTANT: THE ENGINE CAN BE WORN OUT IN A VERY SHORT PERIOD OF TIME IF DtRT OR GRIT IS ALLOWED TO EN-

TER THE ENGINE.

To clean the air filter, do the following:

OLoosen screws on air cleaner cover (see Fig 10) and remove the cover..

@ Remove foam element from air cleaner

®Wipe inside of the air cleaner housing clean

•Clean the foam element by washing in a strong solution of water and household detergent. Then rinse thoroughly in clean water.

®Wrap foam element in clean cloth and squeeze out (do not twist) all the liquid until dry.

@Cover the ends and side of the foam element with same oil used in fuel mixture Knead the foam element between fingers to distribute oil and remove excess oil

®Reinstall foam element in air cleaner housing.

®Service the foam element carefully, inspection for deterioration or damage A defective, improperly serviced, or misassembled air filter will allow dirt particles to enter the engine_

@Reassemble the filter (see Fig 10) Place the cover on the air cleaner housing and tighten screws to secure cover to the housing_

CAUTION: NEVER RUN THE ENGINE

WlTHOUTTHE AIR CLEANER ELEMENT

INSTALLED. A DEFECTIVE AIR

CLEANER CAN RESULT IN LOSS OF

ENGINE POWER AND CAN CAUSE EX-

CESSIVE WEAR OR DAMAGE TO THE

ENGINE COMPONENTS IF DIRT OR

DUST IS PERMITTED TO ENTER THE

ENGINE THROUGH THE CAR BURETOR,

AN AIR CLEANER THAT IS CLOGGED

WITH DUST OR DIRT SHOULD BE

CLEANED AND RE-OILED.

FOAM ELEMENT

SCREW

COVER

HOUSING

FIG., 10

SPARK PLUG MAINTENANCE

tf the engine is flooded, clean the area around the spark plug base to prevent foreign material from entering the cylinders when the plug is removed Remove and dry the spark plug. Regap the electrodes to 035 it necessary If a new spark plug is needed, refer to the Engine Opera- tion and Maintenance manual for the proper replace- ment spark plug. Tighten the spark plug firmly If atorque wrench is available, torque the spark plug to 15 toot- pounds

CYLINDER EXHAUST PORTS

The cylinder exhaust ports should be cleaned after each seventy-five (75) to one hundred (100) hours of opera- tion For this procedure we recommend that you take your unit to a technician trained to work on two cycle engines, such as a SEARS Service Center

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