Operation; Starting And Stopping - Champion 100641 Operator's Manual

100641 - ChAiNSAw
Thoroughly mix the proper ratio of unleaded gasoline with 2-cycle
engine oil. Do not mix them directly in the chainsaw's fuel tank.
Use a separate fuel can. Use a 35:1-40:1 gasoline/oil ratio. See
the table below for specific gasoline and oil mixing ratios.
MIXING RATIO - 35:1-40:1
Unleaded gasoline
1 gallon U.S.
(3.8 L)
1 L
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Gasoline is extremely flammable. Ignited vapors may explode.
Always stop the engine and allow it to cool before filling the
fuel tank. Do not smoke while filling the tank. Keep sparks and
open flames at a distance from the area.
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Remove the fuel cap slowly to avoid injury from fuel spray.
Never operate the chainsaw without the fuel cap securely in
place.
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Add fuel in a clean, well ventilated outdoor area. Wipe up any
spilled fuel immediately. Avoid creating a source of ignition for
spilled fuel. Do not start the engine until fuel vapors dissipate.
1. Position the chainsaw with the fuel cap facing up.
2. Remove the fuel cap (Fig. 2).
3. Place the fuel container spout into the fill hole on the fuel
tank and slowly fill the tank to avoid overfill and spill. Fuel can
expand after filling. A minimum of ¼ in. (6.4 mm) of space left
in the tank is required for fuel expansion, although more than
¼ in. (6.4 mm) is recommended. Fuel can be forced out of the
tank as a result of expansion if overfilled, and can affect the
stable running condition of the chainsaw.
2-cycle oil
3.7 fl. oz.
(108.7 mL)
28.6 mL
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Fuel
Figure 2
4. Wipe up any fuel that may have spilled.
5. Reinstall the fuel cap.
6. Move the chainsaw at least 50 ft. (15 m) from the fuel
container and the fueling site before starting the engine.

OPERATiON

Starting and Stopping

When fueling or using your chainsaw, a fire extinguisher should
be available.
Operate this chainsaw only in a well-ventilated outdoor area.
Carbon monoxide exhaust fumes can be lethal in a confined
area.
Avoid accidentally starting the chainsaw. To avoid serious
injury, the operator and the chainsaw must be in a stable
position when pulling the starter rope (Fig. 5).
Never operate the chainsaw without the guide bar and saw
chain properly installed. Make sure the bar-retaining nuts are
tight and the guide bar cover is securely assembled. Make
sure the saw chain is properly tensioned.
The saw chain will spin after the engine starts. Keep hands
and feet clear of the saw chain and do not allow the saw chain
to contact any object(s).
Before Starting the Chainsaw
A. Mix gasoline with oil. Refer to Oil and Fuel Mixing Instructions.
B. Fill the fuel tank. Refer to Fueling the Chainsaw.
C. Fill the chain oil reservoir with bar and chain oil. Refer to
Adding Bar and Chain Oil in the Maintenance section.
Starting Instructions
1. Make sure the chain brake is engaged. Refer to Testing the
Chain Brake in the Assembly section.
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OPERATiON
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