Servicing The Spark Plug - Toro 75969TE Operator's Manual

Servicing the Spark Plug

Service Interval: Every 100 hours
Make sure that the air gap between the center and
side electrodes is correct before installing the spark
plug. Use a spark plug wrench for removing and
installing the spark plug(s) and a gapping tool/feeler
gauge to check and adjust the air gap. Install a new
spark plug(s) if necessary.
Type : NGK ® BPR4ES or equivalent
Air Gap: 0.76 mm (0.03 inch)
Removing the Spark Plug
1. Shut off the engine, remove the key, and wait
for all moving parts to stop before leaving the
operating position.
2. Disengage the blade-control switch (PTO), move
the motion-control levers to the N
position, and engage the parking brake.
3. Remove the hydraulic-unit shroud and the 2
bolts attached to it
Note:
This gives you access to the front spark
plug.
Figure 58
1. Hydraulic-unit shroud
4. Remove the spark plug.
-
EUTRAL LOCK
(Figure 58).
2. Loosen these 2 bolts.
5. Install the hydraulic-unit shroud
Checking the Spark Plug
Important:
Do not clean the spark plug(s).
Always replace the spark plug(s) when it has: a
black coating, worn electrodes, an oily film, or
cracks.
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.
Set the gap to 0.76 mm (0.03 inch).
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Figure 59
(Figure
Figure 60
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58).
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