8.
Install the dipstick and hand tighten it securely.
9.
Dispose of the used oil properly at a local
recycling center.
Servicing the Spark Plug
Service Interval:
Every 100 hours
Use an
Champion RN9YC
spark plug or equivalent.
1.
Shut off the engine and wait for all moving parts
to stop.
2.
Disconnect the wire from the spark plug.
3.
Clean around the spark plug.
4.
Remove the spark plug from the cylinder head.
Important:
Replace a cracked, fouled, or
dirty spark plug. Do not clean the electrodes
because grit entering the cylinder can
damage the engine.
5.
Set the gap on the plug to 0.76 mm (0.030 inch)
as shown in
.
G017548
g017548
Figure 22
1.
Center-electrode insulator
2.
Side electrode
3.
Air gap (not to scale)
6.
Install the spark plug and the gasket seal.
7.
Torque the plug to 20 N-m (15 ft-lb).
8.
Connect the wire to the spark plug.
Replacing the Blade
Service Interval:
Yearly
Important:
You will need a torque wrench to
install the blade properly
. If you do not have a
torque wrench or are uncomfortable performing
this procedure, contact an Authorized Service
Dealer.
Examine the blade whenever you run out of fuel. If the
blade is damaged or cracked, replace it immediately.
If the blade edge is dull or nicked, have it sharpened
or replace it.
WARNING
The blade is sharp; contacting the blade can
result in serious personal injury.
•
Disconnect the wire from the spark plug.
•
Wear gloves when servicing the blade.
1.
Disconnect the spark-plug wire from the spark
plug. Refer to Preparing for Maintenance.
2.
Tip the machine onto its side, with the dipstick
down.
3.
Use a block of wood to hold the blade steady.
g209201
Figure 23
4.
Remove the blade (turn the blade bolt
counterclockwise), saving all the mounting
hardware.
5.
Install the new blade (turn the blade bolt
clockwise) and all mounting hardware.
Important:
Position the curved ends of the
blade to point toward the machine housing.
6.
Use a torque wrench to tighten the blade bolt
to 25 N-m (18 ft-lb).
Important:
A bolt torqued to 25 N-m (18
ft-lb) is very tight. While holding the blade
with a block of wood, put your weight
16
