MAINTENANCE & REPAIR INSTRUCTIONS
MAINTENANCE SCHEDULE | 3. Wash the filter in | |
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| detergent and water |
| WARNING: To prevent serious injury, never | |
| (Fig. 16). Rinse the filter | |
| perform maintenance or repairs with unit running. | thoroughly. Squeeze |
| Always service and repair a cool unit. Disconnect the | |
| out excess water. Allow | |
| spark plug wire to ensure that the unit cannot start. | |
| it to dry completely. | |
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Inside Muffler
Cover
Perform these required maintenance procedures at the frequency stated in the table. These procedures should also be a part of any seasonal
NOTE: Maintenance, replacement, or repair of the emission control devices and system may be performed by a Sears or other qualified service dealer. Call
In order to assure peak performance of your engine, inspection of the engine exhaust port may be necessary after 50 hours of operation. If you notice lost RPM, poor performance or general lack of acceleration, this service may be required. If you feel your engine is in need of this inspection, refer service to a Sears or other qualified service dealer. Call
FREQUENCY | MAINTENANCE REQUIRED | SEE | |
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Before starting | Fill fuel tank with fresh fuel | p. 5 | |
engine | |||
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Every 10 hours | Clean and | p. 8 | |
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Every 25 hours | Check and clean spark arrestor | p. 8 | |
Check spark plug condition and gap | p. 9 | ||
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| Inspect exhaust port and spark |
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Every 50 hours | arrestor screen for clogging or | p. 9 | |
| obstruction |
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AIR FILTER MAINTENANCE
WARNING: To avoid serious personal injury, always turn your unit off and allow it to cool before you clean or service it.
Removing the Air Filter/Muffler Cover
1. Remove the four (4) screws securing the air filter/muffler cover (Fig. 14). Use a flat blade or T20 Torx bit screwdriver.
2.Pull the cover from the engine. Do not force.
Cleaning the Air Filter | Screws |
Failure to maintain your air filter properly can result in poor performance or can cause permanent damage to your engine.
1. Remove air filter/muffler |
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cover. Refer to Removing | Fig. 14 | |
the Air Filter/Muffler Cover | ||
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above. |
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2.Turn cover over and look inside to locate the air filter. Remove the air filter from inside the air filter/muffler cover (Fig. 15).
4.Apply enough clean SAE 30 oil to lightly coat the
filter (Fig. 17).
5. | Squeeze the filter to | Air Filter |
| spread and remove | |
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| excess oil (Fig. 18). |
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6. | Replace the air filter | Fig. 15 |
| inside the air filter/muffler |
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| cover (Fig. 15). |
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Fig. 16 |
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| Fig. 17 |
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Reinstalling the Air Filter/Muffler
Cover
1. Place the air filter/muffler cover over the back of the carburetor and muffler. Align the screw holes.
2. Insert the four (4) screws into the holes in the air filter/muffler cover (Fig. 12) and tighten. Do not over tighten.
Fig. 18
SPARK ARRESTOR MAINTENANCE
NOTE: Pay close attention when disassembling the muffler so you can put it back together correctly. Failure to do so will damage the unit and may cause serious personal injury.
1.Remove air filter/muffler cover. Refer to Removing the Air Filter/Muffler Cover (p. 8).
2.Locate the muffler, but do not remove it. Find the screw on the bottom of the muffler (Fig. 19). This screw holds the Spark Arrestor Hood Assembly and the spark arrestor screen to the bottom of the muffler. Remove this screw using either a Torx T20 or flat blade screwdriver.
3.Using a small flat blade screwdriver, carefully pry up the spark arrestor screen from the recessed hole, taking care to notice that the “raised” part of the spark arrestor screen is inside the recessed hole. Remove the spark arrestor screen from the muffler.
4.Clean the spark arrestor screen with a wire brush. Replace it if it is damaged, or if you are unable to clean it thoroughly.
5.Reinstall the spark arrestor screen by putting the “raised” portion of the screen inside the recessed hole of the muffler. Make sure that the spark arrestor screen fits flat against the muffler.
6.Place the spark arrestor plate on top of the spark arrestor screen with the raised side up and the opening facing toward the engine (Fig. 19)
7.Place the spark arrestor hood on top of the spark arrestor
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