20
Figure 17
Maintenance
Spark
Arrester
Plate
Muffler
Cover
Muffler
Gasket
Screw(s)
Screw(s)
Cover
Screw(s)
Muffler
7. Remove the spark arrester.
8. Replace the old spark arrester with the new one.
9. Reassemble the mufer by reinstalling the plates and
tightening the three screws (torque to 18 in.lb mini-
mum, 22 in.lb. maximum).
10. Reassemble the mufer and mufer cover and attach to
the mufer gasket with the two screws.
11. Reinsert the mufer 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 ve
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.
Figure 18
Spark
Plug
Spark Plug Boot
Replacing the Spark Arrestor
See Figure 17.
WARNING:
Check for fuel leaks. A leaking fuel cap is a re
hazard and must be replaced immediately. If
you nd any leaks, correct the problem before
using the product. Failure to do so could result
in a re 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, mufer, 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 qualied 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 ve 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 mufer assembly in
place.
4. Remove the mufer assembly and mufer gasket. It
may be necessary to work the mufer assembly free
from the mufer gasket.
5. Separate the mufer cover from the mufer.
6. Remove the three screws that hold the plates on the
mufer.