MAINTENANCE AND REPAIR INSTRUCTIONS

REPLACING THE SPARK PLUG

Use a Champion RDJ7Y 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. 18).

0.020 in.

(0.5 mm.)

Fig. 18

WARNING: Do not sand blast, scrape or clean

electrodes. Grit in the engine could damage the cylinder.

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.

CLEANING THE UNIT

WARNING: To avoid serious personal injury,

always turn your unit off and allow it to cool before you clean or service it.

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.

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. 19). Tighten the knobs.

Handlebar

Knobs

Fig. 19

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.

15