Toro 23515, Service Manual

Page: 22 / 78

SPECIFICATIONS & MAINTENANCE
2-14 Toro 21” Aerator Service Manual
2
Servicing the Spark Plug
Use an NGK BPR6ES spark plug or equivalent.
1. Stop the engine and wait for all moving parts to stop.
2. Disconnect the wire from the spark plug.
3. Clean around the spark plug.
4. Remove the spark plug from the cylinder head.
Important: Replace a cracked, fouled, or dirty spark
plug. Do not clean the electrodes because grit
entering the cylinder can damage the engine.
5. Set the gap on the plug to 0.030” (0.76mm) (Fig.
024).
Fig. 023 fig. 27 G002805
5. Install the new filter and hand tighten it 2/3 turn only.
6. Slowly pour oil into the oil fill tube, periodically
checking the level with the dipstick, until the dipstick
indicates that the engine is full. Do not overfill. (Max.
fill: 0.55 L (20 oz), type: SAE 10-w30 detergent oil
with an API service classification of SH, SJ, SL, or
higher.)
Note: If you overfill the engine, pour some oil out of
it.
7. Install the dipstick securely.
8. Connect the wire to the spark plug.
9. Run the engine for about 3 minutes.
10. Stop the engine, wait for all moving parts to stop,
and check for oil leakage around the filter.
11. Check and add oil to compensate for the oil in the oil
filter. Do not overfill.
12. Recycle the used oil filter according to local codes.
Fig. 024 fig. 28 G000533
3. Remove the oil filter.
4. Use your finger to coat the gasket on the new filter
with oil (Fig. 023).
A
A. Gasket
B
A
D
C
6. Carefully install the spark plug by hand (to avoid
cross threading) until it is hand tight.
7. Tighten the spark plug an additional 1/2 turn if it is
new; otherwise, tighten it an additional 1/8 to 1/4
turn.
Important: A loose spark plug can become very hot
and can damage the engine; over-tightening
a spark plug may damage the threads in the
cylinder head.
8. Connect the wire to the spark plug.
A. Center electrode C. Air gap (not to scale)
insulator D. 0.030” (0.76mm)
B. Side electrode