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Replacing the Spark Arrestor
See Figure 17.
WARNING:
Check for fuel leaks. A leaking fuel cap is a fire
hazard and must be replaced immediately. If
you find any leaks, correct the problem before
using the product. Failure to do so could result
in a fire that could cause serious personal injury.
Note: Depending on the type of fuel used, the type and
amount of lubricant used, and/or your operating conditions,
the exhaust port, muffler, and/or spark arrestor screen may
become blocked with carbon deposits. If you notice a power
loss with your gas powered tool, you may need to remove
these deposits to restore performance. We highly recom-
mend that only qualified service technicians perform this
service.
The spark arrester may need to be replaced after repeated
use. If replacement is necessary, use Toro part number
000998216.
To replace the spark arrester:
1. Remove the five screws that hold the cover.
Note: Removing these screws requires the use of a T20
and T25 torx screwdriver.
2. Remove the cover.
3. Remove the two screws holding the muffler assembly in
place.
4. Remove the muffler assembly and muffler gasket. It
may be necessary to work the muffler assembly free
from the muffler gasket.
5. Separate the muffler cover from the muffler.
6. Remove the three screws that hold the plates on the
muffler.
Cover
Screw(s)
Muffler
Gasket
Muffler
Plate
20
Spark
Muffler
Arrester
Cover
Screw(s)
Screw(s)
Figure 17
7. Remove the spark arrester.
8. Replace the old spark arrester with the new one.
9. Reassemble the muffler by reinstalling the plates and
tightening the three screws (torque to 18 in.lb mini-
mum, 22 in.lb. maximum).
10. Reassemble the muffler and muffler cover and attach to
the muffler gasket with the two screws.
11. Reinsert the muffler assembly and tighten two screws to
engine (torque to 60 in.lb minimum, 80 in.lb. maxi-
mum).
12. Reinstall the cover on the tool and fasten with the five
screws (torque to 16 in.lb minimum, 22 in.lb. maximum).
Note: Do not over-tighten screws.
Replacing the Spark Plug
See Figure 18.
All model numbers included in this manual use a
Champion RCJ4 spark plug. Use an exact replacement and
replace annually.
1. Remove the spark plug boot.
2. Loosen the spark plug by turning it counterclockwise
with a socket.
3. Remove the spark plug.
4. Hand thread the new spark plug, turning it clockwise.
5. Tighten with a socket. (torque to 170 in.lb. minimum,
190 in.lb. maximum. Do not over-tighten).
CAUTION:
Be careful not to cross-thread the spark plug.
Cross-threading will seriously damage the
product.
Spark Plug Boot
Spark
Plug
Figure 18
Maintenance
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