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26 – English
FUEL HANDLING
Fuel
CAUTION! The machine is equipped with a two-stroke engine
and must always been run using a mixture of petrol and two-
stroke engine 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
• Use good quality unleaded or leaded petrol.
• The lowest octane recommended is 90. If you run the
engine on a lower octane than 90 it can result in knocking.
This gives rise to a high engine temperature, which can
result in serious engine damage.
• When working with continuous high revs (e.g. limbing) a
higher octane is recommended.
Two-stroke oil
• For best results and performance use HUSQVARNA two-
stroke oil, which is specially formulated for our two-stroke
engines. Mixture 1:50 (2%).
• If HUSQVARNA two-stroke oil is not available, you may
use another two-stroke oil of good quality that is intended
for air cooled engines. Contact your dealer when selecting
an oil. Mixing ratio 1:33 (3%)-1:25 (4%).
• Never use two-stroke oil intended for water-cooled
outboard engines, sometimes referred to as outboard oil.
• 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.
• If the machine is not used for some time the fuel tank
should be emptied and cleaned.
The following applies to chain saws
with catalytic converters:
Petrol
Always use high grade unleaded petrol (minimum 95 RON)!
Leaded petrol will destroy the catalytic converter and it will no
longer serve its purpose. The green fuel cap on chain saws
with catalytic converters means that only unleaded petrol can
be used.
Two-stroke oil
For best results and performance use HUSQVARNA two-
stroke oil, which is specially formulated for our two-stroke
engines. Mixture 1:50 (2%).
For additional information about fuels, see above.
!
WARNING! Always ensure there is adequate
ventilation when handling fuel.
Petrol, litre
Two-stroke oil, litre
2% (1:50) 3% (1:33) 4% (1:25)
5 0,10 0,15 0,20
10 0,20 0,30 0,40
15 0,30 0,45 0,60
20 0,40 0,60 0,80
!
WARNING! The catalytic converter muffler
gets very hot during and after use. This also
applies during idling. Be aware of the fire
hazard, especially when working near
flammable substances and/or vapours.