Toro TimeCutter MX3400T Operator's Manual page 39

7. Dispose of the used oil at a recycling center.
Servicing the Spark Plug
Service Interval: Every 100 hours or yearly,
whichever comes first—For Kohler
engines—Check the spark plug(s).
Every 200 hours/Every 2 years (whichever
comes first)—For Kohler engines—Replace the
spark plug(s).
Ensure 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 and a gapping tool or feeler gauge to
check and adjust the air gap. Install a new spark plug
if necessary.
Type: Champion ® XC12YC
Air gap: 0.76 mm (0.03 inch)
Removing the Spark Plug
1. Park the machine on a level surface, disengage
the blade-control switch, and move the
motion-control levers outward to the P
position.
2. Shut off the engine, remove the key, and wait
for all moving parts to stop before leaving the
operating position.
Figure 47
3. Clean the area around the base of the plug to
keep dirt and debris out of the engine.
4. Remove the spark plug
Checking the Spark Plug
Important:
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
g365790
insulator usually means the air cleaner is dirty.
Set the gap to 0.75 mm (0.03 inch).
ARK
37
(Figure
Figure 48
Do not clean the spark plug(s).
Figure 49
48).
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