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15
0.020 in.
(0.5 mm.)
REPLACING THE SPARK PLUG
Use a Champion RDJ-7Y spark plug. The correct air gap
is 0.020 in. (0.5 mm). Remove the plug after every 25
hours of operation and check its condition.
1. Stop the engine and allow it to cool. Grasp the plug
wire firmly and pull the cap from the spark plug.
2. Clean dirt from around the spark plug. Remove the
spark plug from the cylinder head by turning a 5/8 in.
socket counterclockwise.
3. Replace cracked, fouled or dirty spark plug. Set the air
gap at
0.020 in. (0.5 mm)
using a feeler gauge (Fig. 19).
Fig. 19
4. Install a correctly-gapped spark plug in the cylinder
head. Turn the 5/8 in. socket clockwise until snug.
If using a torque wrench torque to:
110-120 in.•lb. (12.3-13.5 N•m)
Do not over tighten.
MAINTENANCE AND REPAIR INSTRUCTIONS
Do not sand blast,
scrape or clean
electrodes. Grit in the engine could damage
the cylinder.
WARNING:
LONG TERM STORAGE
If you plan to store the unit for an extended time:
1. Drain all fuel from the fuel tank into a container. Do
not use fuel that has been stored for more than 60
days. Dispose of the old fuel in accordance to local
regulations.
2. Start the engine and allow it to run until it stalls. This
ensures that all fuel has been drained from the
carburetor.
3. Allow the engine to cool. Remove the spark plug and
put 1 oz. (30 ml) of high quality motor oil into the
cylinder. Pull the starter rope slowly to distribute the
oil. Reinstall the spark plug.
NOTE: Remove the spark plug and drain all of the oil
from the cylinder before attempting to start the
unit after storage.
4. Thoroughly clean the unit and inspect for any loose
or damaged parts. Repair or replace damaged parts
and tighten loose screws, nuts or bolts. The unit is
ready for storage.
TRANSPORTING
• Allow the engine to cool before transporting.
• Secure the unit while transporting.
• Drain the fuel tank before transporting.
• Tighten fuel cap before transporting.
MOVING THE UNIT
1. Allow the unit to cool before moving.
2. Loosen the knobs on the handlebar.
3. Fold the handlebars down as shown (Fig. 20).
Tighten the knobs.
4. Either carry the unit by the shaft tube grip or grasp
the center of the handlebar to use it as a carrying
handle.
5. After the unit has been moved, reposition the
handlebars and continue operation.
CLEANING THE UNIT
• Use a small brush to clean off the outside of the unit
and to keep the air vents free of obstructions.
• Do not use strong detergents or petroleum based
cleaners, like kerosene. Some household cleaners
contain aromatic oils such as pine and lemon that
can damage the plastic housings or handles. Wipe
off any moisture with a soft cloth.
STORAGE
• Never store a fueled unit where fumes may reach an
open flame or spark.
• Allow the engine to cool before storing.
• Store the unit in a locked up area to prevent
unauthorized use or damage.
• Store the unit in a dry, well-ventilated area.
• Store the unit out of the reach of children.
Fig. 20
To avoid serious
personal injury,
always turn your unit off and allow it to cool
before you clean or service it.
WARNING:
Handlebar
Knobs