Servicing The Spark Plug; Fuel System Maintenance; Inspecting Fuel Lines And Connections; Replacing The Fuel Filter - Toro 07264 Operator's Manual

Figure 35
1. Engine oil drain plug
Note: Dispose of the used oil at a certified
recycling center.
6. Clean around the oil dipstick and unscrew the
cap.
7. Slowly pour approximately 80% of the
specified amount of oil into the filler tube
and check the oil level; refer to Checking the
Crankcase Oil in Operation, page 22. Slowly
add oil to bring the level to the F mark on the
dipstick.
8. Install the dipstick.

Servicing the Spark Plug

Check the spark plug after every 100 operating
hours or yearly, whichever occurs first. Replace
if necessary.
Type: Champion RN14YC (or equivalent)
Air Gap: 0.030 inch (0.762 mm)
Checking and Replacing the Spark
Plug
Note: The spark plug usually lasts a long time;
however, the plug should be removed and checked
whenever the engine malfunctions.
1. Clean the area around the spark plugs so that
foreign matter cannot fall into the cylinder
when the spark plug is removed.
2. Pull the wires off of the spark plugs and
remove the plugs from the cylinder head.
3. Check the condition of the side electrode,
center electrode, and center electrode insulator
to ensure that there is no damage (Figure 36).
Important: A cracked, fouled, dirty,
or malfunctioning spark plug must be
replaced. Do not sand-blast, scrape, or
clean electrodes by using a wire brush
because grit may eventually release from
the plug and fall into the cylinder. The
result is usually a damaged engine.
Figure 36
1. Center electrode insulator
2. Side electrode
4. Set the air gap between the center and side
of the electrodes at 0.030 inch (0.762 mm)
(Figure 36). Install the correctly gapped spark
plug and tighten the plug to 14 ft-lb (20 N⋅m).
5. Install the spark plug wires.
Fuel System
Maintenance
Inspecting Fuel Lines and
Connections
Check the fuel lines and connections every 400
operating hours or yearly, whichever occurs first.
Inspect them for deterioration, damage, or loose
connections.

Replacing the Fuel Filter

Replace the fuel filter every 800 operating hours
or yearly, whichever occurs first.
1. Raise the box and support it with the prop rod.
33
3. Air gap (not to scale)