Checking And Adjusting The Valve Clearance - Toro GreensPro 1260 Operator's Manual

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Figure 33
1. Spark-plug wire
2. Clean around the spark plug, and remove the plug from
the cylinder head.
Important: Replace a cracked, fouled, or dirty
spark plug. Do not sand blast, scrape, or clean the
electrodes, because engine damage could result
from grit entering the cylinder.
3. Set the air gap to 0.70 to 0.80 mm (0.028 to 0.031 inch)
(Figure 34).
1 2
Figure 34
1. Side electrode
2. Center electrode
4. Install the correctly gapped spark plug carefully by
hand, to avoid cross-threading.
5. After the spark plug is seated, tighten it with a
spark-plug wrench to compress the sealing washer.
•
When installing a new spark plug, tighten it 1/2
turn after the spark plug seats, to compress the
washer.
•
When installing the original spark plug, tighten
it 1/8 to 1/4 turn after the spark plug seats, to
compress the washer.
G019905
3 4
G019300
3. Insulator
4. 0.70 to 0.80 mm (0.028 to
0.031 inch)
Note: A loose spark plug can overheat and damage
the engine. Overtightening the spark plug can damage
the threads in the cylinder head.
6. Connect the spark-plug wire to the spark plug.
Checking and Adjusting the
Valve Clearance
Service Interval: Every 300 hours
Important: Refer to your engine owner's manual.
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