Replacing The Spark Plugs; Fuel System Maintenance; Replacing The Fuel Filter; Inspecting The Fuel Lines And Connections - Toro 04510 Operator's Manual

2. Remove the oil filter
3. Apply a light coat of clean oil to the new filter gasket.
4. Screw the filter on by hand until the gasket contacts the
filter adapter, then tighten it 3/4 to 1 turn further. Do
not overtighten it.
5. Add oil to the crankcase; refer to
Oil (page 20).
6. Dispose of the oil filter and used oil properly.

Replacing the Spark Plugs

Service Interval: Every 800 hours
The recommended air gap is 0.76 mm (0.030 inch)
The correct spark plug to use is a Champion RC 14YC.
Note: The spark plug usually lasts a long time; however,
remove and check the plugs whenever the engine
malfunctions.
1. Clean the area around the spark plugs so foreign matter
cannot fall into the cylinder.
2. Pull the wires off of the spark plugs and remove the
plugs.
3. Check the condition of the side electrode, center
electrode, and center electrode insulator to ensure that
there is no damage.
Important: Replace a cracked, fouled, dirty, or
otherwise malfunctioning spark plug. Do not sand
blast, scrape, or clean electrodes by using a wire
brush because grit may eventually release from the
plug, fall into the cylinder, and damage the engine.
4. Set the air gap between the center and side of the
electrodes at 0.76 mm (0.030 inch)
Figure 43
5. Install the correctly-gapped spark plug with a gasket
seal, and tighten the plug to 23 N∙m (200 in-lb). If you
do not have a torque wrench, tighten the plug firmly.
(Figure 42).
Checking the Engine
(Figure 43).
Fuel System
Maintenance

Replacing the Fuel Filter

Service Interval: Every 800 hours (Sooner if the fuel flow
is restricted)
An in-line filter is incorporated into the fuel line between the
fuel tank and carburetor
DANGER
In certain conditions, fuel is extremely flammable
and highly explosive. A fire or explosion from fuel
can burn you and others and can damage property.
• Drain fuel from the fuel tank when the engine is
cold. Do this outdoors in an open area. Wipe
up any fuel that spills.
• Never smoke when draining fuel, and stay away
from an open flame or where a spark may ignite
the fumes.
1. Close the fuel-shutoff valve, loosen the hose clamp on
the carburetor side of filter, and remove the fuel line
from the filter (Figure
1. Fuel-shutoff valve
2. Place a drain pan under the filter, loosen the remaining
hose clamp and remove the filter
3. Install the new filter with the arrow on the filter body
pointing away from the fuel tank.
Inspecting the Fuel Lines and
Connections
Service Interval: Every 2 years
Inspect the fuel lines for deterioration, damage, or loose
connections.
35
(Figure 44).
44).
Figure 44
2. Fuel filter
(Figure 44).