Toro 51945 - Replacing Spark Arrestor; Replacing the Spark Plug

16
Figure 9
Maintenance
7. Rinse the air lter and let it dry completely.
8. Work two drops of oil into the air lter.
9. Replace the air lter (ts only one way).
10. Replace the air lter cover.
11. Tighten the air lter cover by turning the knob clock-
wise.
12. Replace the spark plug boot.
NOTE: Replace the air lter as indicated by the mainte-
nance schedule.
Replacing the Spark Arrestor
See Figure 9.
Note: Depending on the type of fuel used, the type and
amount of lubricant used, and/or your operating conditions,
the exhaust port, mufer, 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 qualied 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.
Spark
Arrester
Plate
Muffler
Cover
Muffler
Gasket
Screw(s)
Screw(s)
Cover
Screw(s)
Muffler
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 mufer assembly
in place.
4. Remove the mufer assembly and mufer gasket. It
may be necessary to work the mufer assembly free
from the mufer gasket.
5. Separate the mufer cover from the mufer.
6. Remove the three screws that hold the plates on the
mufer.
7. Remove the spark arrester.
8. Replace the old spark arrester with the new one.
9. Reassemble the mufer by reinstalling the plates and
tightening the three screws (torque to 18 in.lb. mini-
mum, 22 in.lb. maximum).
10. Reassemble the mufer and mufer cover and attach to
the mufer gasket with the two screws.
11. Reinsert the mufer 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 overtighten screws.
Replacing the Spark Plug
See Figure 10.
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.
Maintenance
Figure 10
Spark
Plug
Spark Plug
Boot