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Replacing the Spark Plugs
Service Interval: Every 100 hours
Type: Champion RC14YC (or equivalent)
Air Gap: 0.76 mm (0.030 inch)
Note:
The spark plugs usually last a long time;
however, you should remove and check them
whenever the engine malfunctions.
1.
Clean the area around each spark plug so that
foreign matter cannot fall into the cylinder when
the spark plug is removed.
2.
Pull the spark-plug wires off the spark plugs and
remove the plugs from the cylinder head.
3.
Check the condition of the side electrode, center
electrode, and the 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 the
electrodes using a wire brush because grit
may eventually release from the plug, fall
into the cylinder, and damaged the engine.
4.
Set the air gap between the center electrode
and side electrodes to 0.76 mm (0.030 inch);
refer to
Figure
28. Install the correctly gapped
spark plug with the gasket seal, and tighten the
plug to 23 N∙m (200 in-lb). If a torque wrench is
not used, tighten the plug firmly.
Figure 28
Fuel System
Maintenance
Replacing the Fuel Filter
Service Interval: Every 500 hours
An in-line filter is incorporated into the fuel line. Use
the following procedures when replacement becomes
necessary:
1.
Close the fuel-shutoff valve, loosen the hose
clamp on the carburetor side of the filter, and
remove the fuel line from the filter
1. Fuel filter
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 (toward
the carburetor).
4.
Slide the hose clamps onto the ends of the fuel
lines.
5.
Push the fuel lines onto the fuel filter and secure
them with the hose clamps.
g002724
Note:
Be sure that the arrow on the side of the
filter points toward the carburetor.
26
(Figure
Figure 29
2. Hose clamps
29).
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