Function Overview; Type Plate And Product Serial Number; Fuel - Husqvarna 545 Mark II Workshop Manual

7.1 Type plate and product serial number

The product serial number is given on the type plate.
Supply the model name and the article number when
you send an order for spare parts.

7.2 Fuel

This product has a two-stroke engine.
CAUTION: Incorrect type of fuel can result in
engine damage. Use a mixture of gasoline and
two-stroke oil.
7.2.1 Premixed fuel
Use Husqvarna premixed alkylate fuel of a good quality,
for best performance and extension of the engine life.
This fuel contains less harmful chemicals compared to
regular fuel, which decreases harmful exhaust fumes.
The quantity of remains after combustion is lower with
this fuel, which keeps the components of the engine
more clean.
7.2.2 To mix fuel
7.2.2.1 Gasoline
CAUTION: Do not use gasoline with an octane
grade less than 90 RON/87 AKI. Use of a lower
octane grade can cause engine knocking, which
causes engine damages.
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7 Function overview

We recommend that you use gasoline of a higher octane
grade for work with continuously high rpm. Limbing is an
example of such work.
Use good quality unleaded gasoline with a maximum of
10% ethanol contents.
7.2.2.2 Two-stroke oil
For best results and performance use Husqvarna two-
stroke oil.
If Husqvarna two-stroke oil is not available, use a two-
stroke oil of good quality for aircooled engines. Speak to
your servicing dealer to select the correct oil.
7.2.2.3 To mix gasoline and two-stroke oil
Gasoline, liter
5
10
15
20
CAUTION: Do not use two-stroke oil for water-
cooled outboard engines, also referred to as
outboard oil. Do not use oil for four-stroke
engines.
Two-stroke oil, li-
ter
2% (1:50)
0.10
0.20
0.30
0.40
Function overview - 15