Function Overview; Type Plate/Product Serial Number; Fuel - Husqvarna 331RB Workshop Manual

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6.1 Type plate/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.

6.2 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.
6.2.1 To mix fuel
6.2.2 Gasoline
Use good quality unleaded gasoline with a maximum
of 10% ethanol contents.
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.
6.2.3 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 air-cooled engines.
Speak to your servicing dealer to select the correct
oil.
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.
6.2.4 To mix gasoline and two-stroke oil
Gasoline, l
5
10
15
20
CAUTION: Small errors can change the ratio of
the mixture when you mix small quantities of
fuel. Measure the quantity of oil carefully and
make sure that you get the correct mixture.

10 - Function overview

6 Function overview
1. Fill ½ the quantity of gasoline in a clean container for
2. Add the full quantity of oil.
3. Shake the fuel mixture.
4. Add the remaining quantity of gasoline to the
5. Carefully shake the fuel mixture.
6.2.5 To add fuel
Two-stroke oil,
l
2 % (50:1)
0.10
0.20
0.30
0.40
fuel.
container.
CAUTION: Do not mix fuel for more than 1
month at a time.
Always use a fuel container with an antispill valve.
If there is some fuel on the container, remove the
unwanted fuel and let the container dry.
Make sure that the area near the fuel tank cap is
clean.
Shake the fuel container before you add the fuel
mixture to the fuel tank.
1281 - 001 -

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