Replacing The Spark Plugs; Fuel System Maintenance; Replacing The Fuel Filter; Fuel Lines And Connections - Toro 04358 Greensmaster 3150 Operator's Manual

Replacing the Spark Plugs

Replace the spark plugs after every 800 operating 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, the
plug should be removed and checked whenever the engine
malfunctions.
1. Clean the area around the spark plugs so foreign matter
cannot fall into the cylinder when the spark plug is
removed.
2. Pull the spark plug 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.
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 49).
Figure 49
5. Install the correctly gapped spark plug with gasket seal,
and tighten the plug to 23 Nm (200 in-lb). If a torque
wrench is not used, tighten the plug firmly.
Fuel System
Maintenance

Replacing the Fuel Filter

An in-line filter is incorporated into the fuel line between the
fuel tank and carburetor (Figure 50). Replace the filter every
800 hours or sooner if the fuel flow is restricted. Be sure the
arrow on the filter is pointing away from 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. Close the fuel shut off valve, loosen the hose clamp on
the carburetor side of filter, and remove the fuel line
from the filter (Figure 50).
1. Fuel shut off valve
2. Place a drain pan under the filter, loosen the remaining
hose clamp and remove the filter (Figure 50).
3. Install the new filter with the arrow on the filter body
pointing away from the fuel tank.

Fuel Lines and Connections

Service Interval: Every 2 years
Inspect the fuel lines for deterioration, damage, or loose
connections.
35
Figure 50
2. Fuel filter