Servicing The Spark Plug - Toro 74909TE Operator's Manual

Servicing the Spark Plug

Service Interval: Every 100 hours
Make sure 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 of Spark Plug: NGK
Air Gap: 0.76 mm (0.030 inch)
Removing the Spark Plugs
Important: The fasteners on the covers of this machine
are designed to remain on the cover after removal.
Loosen all of the fasteners on each cover a few turns
so that the cover is loose but still attached, then go
back and loosen them until the cover comes free. This
prevents you from accidentally stripping the bolts free
of the retainers.
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
and set the parking brake.
3. Remove the hydraulic-unit shroud by removing the 2
nuts shown in Figure
Note: This gives you access to the front spark plug.
1
1. Remove these 2 nuts
4. Remove the spark plugs.
® BPR4ES or equivalent
-
EUTRAL LOCK
60.
Figure 60
A
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5. Install the left-hand hydraulic-unit shroud
Checking the Spark Plug
Important: Never 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
position,
operating properly. A black coating on the insulator usually
means the air cleaner is dirty.
Set the gap to 0.76 mm (0.030 inches).
A
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43
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B
Figure 61
(Figure
B
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Figure 62
60).