Fuel Handling; Fuel - Husqvarna 525BX Operator's Manual

H1156688-26,525BX,GB.fm Page 33 Wednesday, August 12, 2015 3:33 PM

Fuel

CAUTION! The machine is equipped with a two-stroke
engine and must always be 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.
WARNING! Always ensure there is
!
adequate ventilation when handling fuel.
Petrol
CAUTION! Always use a good quality petrol/oil mixture (at
least 90 octane).
• The lowest recommended octane rating is 90. If you
run the engine on a petrol with a lower octane rating
than 90 this can cause knocking. This leads to an
increased engine temperature, which can result in
serious engine damage.
• When working at continuous high revs a higher octane
rating is recommended. Use good quality unleaded
petrol.
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
• 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%).
• 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.

FUEL HANDLING

Petrol, litre
5
10
15
20
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.
Two-stroke oil, litre
2% (1:50) 3% (1:33)
0,10 0,15
0,20 0,30
0,30 0,45
0,40 0,60
English
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