Servicing The Spark Plug - Toro MMX-658H-S Operator's Manual

Figure 44
1. Oil-fill hole
2. Dipstick
7. Replace and secure the dipstick.
8. Wipe up any spilled oil.

Servicing the Spark Plug

Service Interval: Every 100 hours/Every 6 months
(whichever comes first)—Check the
spark plug.
Every 300 hours/Yearly (whichever comes
first)—Replace the spark plug.
Spark Plug Specifications
Type: NGK BPR6ES or equivalent
Gap: 0.7 to 0.8 mm (0.028 to 0.031 inch)
Note:
Use a 21 mm (13/16 inch) spark-plug wrench
for removing and installing the spark plug.
Removing the Spark Plug
1. Park the machine on a level surface and shut
off the engine.
2. Ensure that the machine surfaces are cool.
3. Pull the spark-plug wire off the terminal of the
spark plug (Figure
3. Oil-level upper limit
4. Oil-level lower limit
45).
g028981
1. Spark plug
4. Clean around the spark plug.
5. Rotate the spark plug counterclockwise using
a 21 mm (13/16 inch) spark-plug wrench to
remove the plug and the sealing washer
46).
Installing the Spark Plug
Important:
Ensure that the gap between the side
and center electrodes is correct before installing
the spark plug.
1. Thread the spark plug clockwise into the
spark-plug hole by hand.
Note:
Avoid cross-threading the spark plug with
the threads of the spark-plug hole.
2. Rotate the spark plug clockwise using a 21 mm
(13/16 inch) spark-plug wrench until the plug
and sealing washer are seated
3. Tighten the spark plug as follows:
32
Figure 45
2. Wire
Figure 46
(Figure
g014506
(Figure
g019749
46).