Cub Cadet BB40 Blower User Manual


 
9
Oil and Fuel
Section 4
NOTE: This unit is equipped with a 2-stroke
engine that must always run on a mixture
of gas and oil. It is important to measure
the quantity accurately, to ensure the
correct mixing ratio. Small discrepancies in
the amount of oil have a great bearing on
the fuel mix proportions when mixing a
small amount of fuel.
Oil and Fuel Mixing
Instructions
Old and/or improperly mixed
fuel are the main reasons for
the unit not running properly.
Be sure to use fresh, clean
unleaded fuel. Follow the
instructions carefully for the
proper fuel/oil mixture.
Gas Information
The lowest recommended
octane rating is 87. If you run
the engine with gas with a
lower octane than 87,
“knocking” can occur. This
leads to an increase in engine
temperature, which can result
in a serious engine breakdown.
When working at continuous
high revs, a higher octane
gasoline is recommended.
2-stroke Oil
For best results, use 2-stroke
oil that has been specifically
produced for use in small engines.
Mixing ratio is 1:50 (2%).
Contact your dealer
when selecting an oil.
Mixing ratio is 1:33 (3%).
Never use 2-stroke oil
that is intended for
water-cooled outboard
motors (referred to as
outboard motor oil).
Never use oil intended
for 4-stroke engines.
Mixture/Fueling
Always mix fuel and oil in a
clean container that is
intended for fuel.
Always begin by filling the
container with half the
amount of fuel required.
Then add the entire oil
quantity. Mix (by shaking)
the mixture, and then fill the
container with the remaining
amount of fuel.
•Mix the fuel mixture careful-
ly, before pouring it into the
fuel tank.
Do not mix more than one
month’s supply of fuel.
If you don’t use the unit for
a long period of time, you
must empty and clean the
tank.
When fueling, be sure to
clean around the fuel cap.
Contamination in the tank
can disrupt operations.
Ensure that fuel is mixed
thoroughly by shaking the
container before filling the
unit’s fuel tank.
Remove fuel cap slowly to avoid injury from fuel
spray. Never operate the unit without the fuel
cap securely in place.
Add fuel in a clean, well ventilated outdoor area.
Wipe up any spilled fuel immediately. Avoid
creating a source of ignition for spilt fuel. Do not
start the engine until fuel vapors dissipate.
NOTE: Dispose of the old fuel/oil mix in
accordance to Federal, State and Local
regulations.
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.