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Replacing the Spark Plug
Use a Champion RN4C or equivalent spark plug. Install a
new plug after every 100 operating hours.
1. Stop the engine and wait for all moving parts to stop.
2. Clean any debris from around the base of the spark
plug.
3. Disconnect the wire from the spark plug (Fig. 12).
4. Remove the spark plug.
5. Examine the spark plug and replace it if it is cracked,
fouled, dirty, or if the electrodes are worn.
Important
Do not clean the electrodes because grit
could enter the cylinder and damage the engine.
6. Set the gap between the electrodes on the spark plug at
0.030 in. (0.76 mm) as shown in Figure 38.
Figure 38
1. 0.030 in. (0.76 mm)
7. Install the spark plug by hand and then torque it to
15 ft-lb (20.4 N m). If you do not have a torque wrench,
tighten the plug firmly.
8. Connect the wire to the spark plug.
Emptying the Fuel Tank
1. Stop the engine and wait for all moving parts to stop.
2. Disconnect the wire from the spark plug (Fig. 12)
3. Close the fuel shutoff valve (Fig. 15).
Danger
Gasoline is highly flammable; it can ignite and
cause serious personal injury.
Drain gasoline outdoors.
Drain gasoline from a cold engine only.
Wipe up any gasoline that may have spilled.
Do not drain gasoline near any open flame or
where gasoline fumes may be ignited by a spark.
Do not smoke a cigar, a cigarette, or a pipe when
handling gasoline.
4. Place a clean drain pan under the fuel shutoff valve.
5. Loosen the hose clamp that secures the fuel line to the
valve and slide the fuel line off the fuel shutoff valve
(Fig. 15).
6. Open the fuel shutoff valve and allow the fuel to drain
out of the fuel tank into the drain pan.
7. Install the fuel line onto the fuel shutoff valve and
secure it with a hose clamp.
8. Connect the wire to the spark plug.
9. Start the snowthrower and run the engine until it stops.
Repeat this step two more times to ensure that the fuel
tank and the carburetor are empty.
Storage
Gasoline fumes are highly flammable, explosive,
1
and dangerous if inhaled. If the product is stored
in an area with an open flame, the gasoline fumes
may ignite and cause an explosion.
110
Do not store the snowthrower in a house (living
area), basement, or any other area where ignition
sources may be present, such as hot water and
space heaters, clothes dryers, furnaces, and other
like appliances.
Preparing the Fuel System
1. Add stabilizer/conditioner to the fuel in the fuel tank as
directed.
2. Run the engine for ten minutes to distribute conditioned
fuel through the fuel system.
3. Stop the engine, allow it to cool, and drain the fuel tank
or run the engine until it stops. Refer to Emptying the
Fuel Tank on page 24.
4. Start the engine and run it until it stops.
5. Choke or prime the engine, start it a third time, and run
the engine until it will not start.
6. Dispose of unused fuel properly. Recycle it according to
local codes, or use it in your automobile.
Note: Do not store stabilized gasoline for more than 90
days.
Preparing the Engine
1. While the engine is still warm, change the engine oil.
Refer to Changing the Engine Oil on page 22.
2. Remove the spark plug.
24
Warning
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