Replacing The Spark Plug; Replacing The Drive Belt - Toro Power Clear 721 Operator's Manual

9. Wait 3 minutes for the oil to settle in the engine.
10. Wipe the dipstick clean with a clean cloth.
11. With the machine in the operating position,
insert the dipstick into the oil-fill tube, but do not
screw it in, then remove the dipstick.
12. Read the oil level on the dipstick.
•
If the oil level on the dipstick is too low,
carefully pour a small amount of oil into
the oil-fill tube, wait 3 minutes, and repeat
steps 10 through
dipstick is correct.
•
If the oil level on the dipstick is too high,
drain the excess oil until the oil level on the
dipstick is correct.
Important:
If the oil level in the engine is too
low or too high and you run the engine, you
may damage the engine.
13. Install the dipstick into the oil-fill tube securely.
14. Recycle the used oil properly.

Replacing the Spark Plug

Service Interval: Every 100 hours—Replace the
spark plug.
WARNING
Replacing the spark plug while the engine is
hot can result in burns.
Wait until the engine is cool to replace the
spark plug.
Use a Toro spark plug or equivalent (Champion®
RN9YC or NGK BPR6ES).
1. Remove the boot
Figure 28
12 until the oil level on the
(Figure 29).
g006374
1. Spark-plug boot
2. Clean around the base of the spark plug.
3. Remove and discard the old spark plug.
Note:
You will need a ratchet wrench extension
to remove the spark plug.
4. Set the gap between the electrodes on a new
spark plug at 0.76 mm (0.030 inch) as shown
in Figure
1. 0.76 mm (0.030 inch)

Replacing the Drive Belt

If the drive belt becomes worn, oil-soaked, excessively
cracked, frayed, or otherwise damaged, replace the
belt.
1. Remove the drive-belt cover by removing the 3
bolts as shown in
19
Figure 29
30.
Figure 30
Figure 31.
g030123
g001029