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FUEL HANDLING
General
Fuel
Petrol
• Use good quality unleaded or leaded petrol.
• The lowest octane recommended is 90 (RON). If you run
the engine on a lo
wer 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
r
ating is recommended.
Environment fuel
HUSQVARNA recommends the use of alkylate fuel, either
Aspen two-stroke fuel or environment 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).
Two-stroke oil
• 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.
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
f
or air-cooled, two-stroke engines.
Fuelling
Never start the machine:
• If you have spilt fuel or engine oil on the machine. Wipe off
the spill and allo
w the remaining fuel to evaporate.
• If you have spilt fuel on yourself or your clothes, change
y
our clothes. Wash any part of your body that has come in
contact with fuel. Use soap and water.
• If the machine is leaking fuel. Check regularly for leaks
from the fuel cap and fuel lines
.
Transport and storage
• Store and transport the machine and fuel so that there is
no risk of any leakage or fumes coming into contact with
sparks or naked flames, for example, from electrical
machinery, electric motors, electrical relays/switches or
boilers.
• When storing and transporting fuel always use approved
containers intended f
or this purpose.
Long-term storage
• When storing the machine for long periods the fuel tank
must be emptied. Contact your local petrol station to find
out where to dispose of excess fuel.
!
WARNING! Running an engine in a confined
or badly ventilated area can result in death
due to asphyxiation or carbon monoxide
poisoning.
Fuel and fuel fumes are highly inflammable
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. Use fans to ensure
proper air circulation when working in
trenches or ditches deeper than one meter.
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) 3% (1:33)
5
0,10 0,15
10 0,20 0,30
15 0,30 0,45
20 0,40 0,60
!
WARNING! Always stop the engine and let it
cool for a few minutes before refuelling. The
engine should be switched off, and the stop
switch in STOP position.
When refuelling, open the fuel cap slowly so
that any excess pressure is released gently.
Clean the area around the fuel cap.
Tighten the fuel cap carefully after refuelling.
Negligence may lead to the start of a fire.
Move the machine at least 3 m from the
refuelling point before starting it.