Replacing the Spark Plugs
Service Interval:
Every 100 hours/Yearly (whichever
comes first) Replace the spark plugs
if necessary.
Type:
NGK-R BKR5E (or equivalent)
Air Gap:
0.81 mm (0.032 inch)
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.
1.
Clean the area around the spark plug so that
foreign matter cannot fall into the cylinder when
you remove the spark plug.
2.
Pull the wire off the terminal of the spark plug.
3.
Remove the plug from the cylinder head.
4.
Check the condition of the side electrode, center
electrode, and center electrode insulator to
ensure that there is no damage (
).
g238437
Figure 38
1.
Side electrode
3.
Air gap (not to scale)
2.
Center electrode insulator
5.
Set the air gap between the center and side
of the electrodes at 0.81 mm (0.032 inch) as
shown in
.
6.
Install the spark plug into the cylinder head, and
torque the plug to 24.5 to 29 N∙m (18 to 22 ft-lb).
7.
Install the spark-plug wire.
8.
Repeat steps
through
for the other spark
plug.
Fuel System
Maintenance
Inspecting the Carbon
Canister Air Filter
Service Interval:
After the first 50 hours—Inspect the
opening on the carbon canister air
filter.
Every 100 hours—Inspect the opening on the
carbon canister air filter.
Every 200 hours—Change the carbon canister
air filter.
1.
Locate the air filter on the bottom of the carbon
canister (
g016089
Figure 39
1.
Filter opening
2.
Ensure that the opening on the bottom of the
filter is clear and open.
Replacing the Fuel Filter
Service Interval:
Every 400 hours
1.
Raise the bed and place the safety support on
the extended-lift cylinder to hold up the bed.
2.
Unplug the wire-harness connectors from the
fuel pump (
41
Summary of Contents for Workman HDX 07383
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