Warning, Maintenance and repair instructions – MTD YM290 User Manual

Page 12

MAINTENANCE AND REPAIR INSTRUCTIONS

Fig. 10

Fig. 11

SPARK ARRESTOR MAINTENANCE

1. The spark arrestor is located in the muffler, under the

engine cover. When facing the unit from the front, the
muffler and spark arrestor are positioned on the left
hand side (Fig. 12).

2. To access the muffler and spark arrestor, you must

remove the engine cover. Using a T-25 torx or
flathead screwdriver, remove the five engine screws
pictured in Figure 13.

NOTE: You will have to remove the spark plug to access

one of the engine cover screws (Screw 5) (Fig. 13).

3. Once the engine cover is removed, the muffler heat

shield is visible. Remove the three screws from the
shield with a Phillips screwdriver. Then remove and
store the heat shield to reveal the muffler.

4. Remove the remaining three screws that secure the

muffler deflector plate to the muffler. Also remove he
two bolts. Use a Phillips screwdriver for the screws and
a T-25 torx screwdriver for the muffler bolts (Fig. 14).

5. Remove the spark arrestor and clean it with a wire

brush. Replace it if it is damaged or if you are unable to
clean it thoroughly.

6. Reinstall spark arrestor and reattach the muffler

deflector plate with the bolts and screws.

To avoid serious
personal injury,

always turn your unit off and allow it to cool
before you clean or service it.

WARNING:

Spark

Arrestor

Fig. 9

Fig. 12

Fig. 13

Muffler

and Spark

Arrestor

Spark

Plug

Removed

to Access

Screws

Screw 5

Fig. 14

Remove

Spark Plug

Heat

Shield

Muffler

Deflector Plate

Screw 5

7. Reinstall the heat shield using the three screws.

8. Put the engine cover back on the unit and reinsert the

five screws.

9. Reconnect the spark plug.

Muffler Bolts