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FUEL HANDLING
14 – English
General
Fuel
Petrol
• Use good quality unleaded or leaded petrol.
• The lowest octane recommended is 90 (RON). If you
run the engine on a lower octane grade than 90 so-
called knocking can occur. This gives rise to a high
engine temperature, which can result in serious
engine damage.
• When working at continuous high revs a higher octane
rating is recommended.
Environment fuel
HUSQVARNA recommends the use of alkylate fuel,
either Aspen two-stroke fuel or environmental fuel for
four-stroke engines blended with two-stroke oil as set out
below. Note that carburettor adjustment may be
necessary when changing the type of fuel (see the
instructions under the heading Carburettor).
Ethanol blended fuel, E10 may be used (max 10%
ethanol blend). Using ethanol blends higher than E10 will
create lean running condition which can cause engine
damage.
Two-stroke oil
K760
• For best results and performance use HUSQVARNA
two-stroke engine oil, which is specially formulated for
our air-cooled two-stroke engines.
• Never use two-stroke oil intended for water-cooled
engines, sometimes referred to as outboard oil (rated
TCW).
• Never use oil intended for four-stroke engines.
K760 OilGuard
• Use HUSQVARNA OilGuard two stroke oil.
Mixing
• Always mix the petrol and oil in a clean container
intended for fuel.
• Always start by filling half the amount of the petrol to
be used. Then add the entire amount of oil. Mix
(shake) the fuel mixture. Add the remaining amount of
petrol.
• Mix (shake) the fuel mixture thoroughly before filling
the machine’s fuel tank.
• Do not mix more than one month’s supply of fuel at a
time.
Mixing ratio
• 1:50 (2%) with HUSQVARNA two-stroke oil or
equivalent.
• 1:33 (3%) with oils class JASO FB or ISO EGB
formulated for air-cooled, two-stroke engines or mix
as per recommendation from the oil manufacturer.
!
WARNING! Running an engine in a
confined or badly ventilated area can
result in death due to asphyxiation or
carbon monoxide poisoning. Use fans to
ensure proper air circulation when
working in trenches or ditches deeper
than one meter.
Fuel and fuel fumes are flammable and
can cause serious injury when inhaled or
allowed to come in contact with the skin.
For this reason observe caution when
handling fuel and make sure there is
adequate ventilation.
The exhaust fumes from the engine are
hot and may contain sparks which can
start a fire. Never start the machine
indoors or near combustible material!
Do not smoke and do not place any hot
objects in the vicinity of fuel.
NOTICE! The machine is equipped with a two-stroke
engine and must always been run using a mixture of
petrol and two-stroke oil. It is important to accurately
measure the amount of oil to be mixed to ensure that the
correct mixture is obtained. When mixing small amounts
of fuel, even small inaccuracies can drastically affect the
ratio of the mixture.
Petrol, litre
Two-stroke oil, litre
2% (1:50)
5 0,10
10 0,20
15 0,30
20 0,40