Fuel System Maintenance; Draining The Fuel Tank - Toro 23208 Operator's Manual

Checking the Spark Plug
1. Look at the center of the spark plug (Figure 36). If you
see light brown or gray on the insulator, the engine is
operating properly. A black coating on the insulator
usually means that the air cleaner is dirty.
2. If needed, clean the spark plug with a wire brush to
remove carbon deposits.
Figure 36
1. Center electrode insulator
2. Side electrode
Important: Always replace the spark plug when
it has worn electrodes, an oily film on it, or has
cracks in the porcelain.
3. Check the gap between the center and side electrodes
(Figure 36). Bend the side electrode (Figure 36) if the
gap is not correct.
Installing the Spark Plug
1. Install the spark plug and the metal washer. Ensure
that the air gap is set correctly.
2. Tighten the spark plug to 22 N-m (16 ft-lb).
3. Connect the wire to the spark plug (Figure 36).
3. Air gap (not to scale)
Fuel System
Maintenance

Draining the Fuel Tank

DANGER
In certain conditions, gasoline is extremely
flammable and highly explosive. A fire or explosion
from gasoline can burn you and others and can
damage property.
• Drain gasoline from the fuel tank when the
engine is cold. Do this outdoors in an open area.
Wipe up any gasoline that spills.
• Never smoke when draining gasoline, and stay
away from an open flame or where a spark may
ignite the gasoline fumes.
1. Park the machine on a level surface, to ensure that the
fuel tank drains completely.
2. Lower the grinder.
3. Stop the engine, remove the key, and wait for all moving
parts to stop before leaving the operating position.
4. Turn the fuel shutoff valve to the closed position
(Figure 37).
1. Fuel shutoff valve
5. Squeeze the ends of the hose clamp on the engine side
of the shutoff valve together and slide it up the fuel line
away from valve (Figure 37).
6. Pull the fuel line off the valve (Figure 37).
7. Open the fuel shutoff valve and allow the gasoline to
drain into a gas can or drain pan.
Note: Now is the best time to install a new fuel filter
because the fuel tank is empty. Refer to Replacing the
Fuel Filter (page 27).
8. Install the fuel line onto the fuel shutoff valve. Slide
the hose clamp close to the valve to secure the fuel line.
26
Figure 37