Servicing The Spark Plugs - Toro ProCore Processor Operator's Manual

contacts the filter adapter, then tighten the filter an
additional 2/3 to 1 turn
7. Fill the crankcase with the proper type of new oil; refer
to Servicing the Engine Oil (page
8. Run the engine for about 3 minutes, turn the key in the
ignition switch to the O
leaks around the oil filter.
9. Check the engine oil level and add oil if needed.

Servicing the Spark Plugs

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 plugs and a
gapping tool/feeler gauge to check and adjust the air gap.
Install a new spark plugs if necessary.
Type: Champion® RC12YC, Champion® Platinum 3071
or equivalent
Air Gap: 0.760 mm (0.030 inch)
Checking the Spark Plugs
Service Interval: Every 200 hours
1. Look at the center of the spark plugs
Light brown or gray on the insulator, indicates that the
engine is operating properly. Black on the insulator
indicates that the air cleaner is dirty.
Figure 49
1. Center electrode insulator
2. Side electrode
Important: Always replace the spark plugs when
they have a black coating, worn electrodes, an oily
film, or cracks.
2. Check the gap between the center and side electrodes
(Figure 49).
3. If the gap is not correct, bend the side electrode
49).
(Figure 48).
36).
position, and check for oil
FF
(Figure 49).
3. Air gap (not to scale)
(Figure
Removing the Spark Plugs
1. Turn the key in the ignition switch to the O
remove the key, and wait for all moving parts to stop
before leaving the operating position.
2. Disconnect the wires from the spark plugs
1. Spark-plug wire
3. Clean around the spark plugs to prevent dirt from
falling into the engine and potentially causing damage.
4. Remove the spark plugs and the metal washers.
Installing the Spark Plugs
1. Install the spark plugs and the metal washer. Ensure
that the air gap is set correctly.
2. Torque the spark plugs to 24.4 to 29.8 N-m (18 to 22
ft-lb).
3. Connect the wires to the spark plugs
38
FF
(Figure
Figure 50
2. Spark plug
(Figure
position,
50).
49).