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FUEL HANDLING
Fuel
CAUTION! The machine is equipped with a two-stroke engine
and must always been run using a mixture of gasoline 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.
Gasoline
• This engine is certified to operate on unleaded
gasoline.
• Use good quality unleaded gasoline.
• The lowest octane recommended is 87. If you run the
engine on a lower octane than 87 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%).
• 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 gasoline and oil in a clean container
intended for fuel.
• Always start by filling half the amount of the gasoline to be
used. Then add the entire amount of oil. Mix (shake) the
fuel mixture. Add the remaining amount of gasoline.
• 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.
• This engine is certified to operate on unleaded
gasoline.
The following applies to chain saws
with catalytic converters:
Gasoline
Always use high grade unleaded gasoline (minimum 95
ROZ). Leaded gasoline will destroy the catalytic converter
and it will no longer serve its purpose. The green fuel cap on
saws fitted with catalytic converters means that only unleaded
gasoline 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.
Gasoline,
litre
Two-stroke
oil, litre
2% (1:50)
5 0,10
10 0,20
15 0,30
20 0,40
US gallon US fl. oz.
1 2 1/2
2 1/2 6 1/2
5 12 7/8
!
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.