Yamaha EF4000DE - Manual (Page 37)

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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.
å EF4000DE
∫ YG4000D
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A B
741-001
711-028
AE00841
MUFFLER SCREEN AND SPARK ARRESTER
(For EF5200DE/EF6600DE/YG5200D/YG6600D/
YG6600DE)
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The engine and muffler will be very hot after the
engine has been run.
Avoid touching the engine and muffler while they
are still hot with any part of your body or clothing
during inspection or repair.
1. Remove the muffler protector and muffler screen.
1 Muffler protector
2 Muffler screen
3 Screw
2. Use a flathead screw driver to pry the spark
arrester out from the muffler.
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7WV-9-11 B 10/15/03 3:50 PM Page 32