Yamaha EF4000DE - Manual (Page 38)

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711-029
q
711-022
3. Remove the spark arrester.
1 Spark arrester
4. Remove the carbon deposits on the muffler
screen and spark arrester using a wire brush.
711-050
711-029a
q
w
711-027a
c C
When cleaning, use the wire brush lightly to avoid
damaging or scratching of the muffler screen and
spark arrester.
5. Check the muffler screen and spark arrester.
Replace them if damaged.
6. Install the spark arrester.
NOTE:
Align the spark arrester projection with the hole in the
muffler pipe.
1 Projection
2 Hole
7. Install the muffler screen and muffler protector.
7WV-9-11 B 10/15/03 3:50 PM Page 33