Servicing The Spark Plug - Toro TimeCutter Z4220 Operator's Manual

1 Oil filter
2 Gasket
GD05177
Figure 30
3 Adapter
Figure 31
1,, Spark plug and wire location
\
G005D70
15. Slowly pour appro>imately 80% of the specified oil
into the filler robe (Figure 27)_
16. Install the oil fill cap/dipstick and push firmly into
place (Figure 2T)0
17 Check the oil levd (Figure 27); refer to Chec'_ng
the Oil Level.
t8. Slowly add additional oil to bring it to the fi.fll mark_
I9. Install the oi! fill cap/dipstick and push firmly into
place (Figure 27)_
Servicing the Spark Pnug
Service Interval: Every 200 hours--Check spark plug
condition and gap,
Every 500 hours--Replace the spark
plug..
The spark plug is RFI compliant. Equivalent alternate
brand plugs can also be used. Spark plug replacement is
recorm_ended at 500 hours
T}qpe: Champion XCI2YC (or equivalent)
A_ Gap: 0 030 inch (0.76 mm)
Removing the Spark Plug
1. Disengage the blade control switch, move the
motion controls outward to the park position, stop
the engine, and remove the key.
2. Pu!l the wire off of the spark plug (Figure 31), Clean
around the spark plug to prevent dirt from falling
into the engine and potentially causing damage.
.3.
Note:
Due to the deep recess around the spark
plug, blowing out the cavity with compressed air
is usually the most effective method for cleaning..
The spark plug is most accessible when the blower
housing is removed for cleaning
Remove the spark plug and metal washer
Checking the Spark Plug
1.. Look at the center of the spark plug (Figure 32),.
If you see light brown or gray on the insulator, the
engine is operating properly, A black coating on the
insulator usually means the air cleaner is dirty
,
Important: Never clean the spark plug. Always
replace the spark plug when it has a black
coating, worn electrodes, an oily film, or cracks,
Check the gap between the center and side electrodes
(Figure 32) Bend the side electrode (Figure .32) if
the gap is not correct_
2
G00(3533
Figure 32
3
L_
0.030 inch
(0,,76 rnm)
t,
Center electrode insulator 3 Air gap (not to scale)
2 Side electrode
Installing the Spark Plug
1. Install the spark plug Make sure that the air gap is
set correctly..
2. Tighten the spark plug to 30 ft-tb (41 N-m),.
.3. Push the wire onto the spark plug (Figure .3I).
Cleaning the Blower Housing
To ensure proper cooling, make sure the grass screen,
cooling fins, and other external surfaces of the engine
are kept dean at all times,.
29