Operation - Husqvarna 131RB Operator's Manual

7. After you lock the liner (E) into position, pull on the
liner to make sure the stopper works correctly.
WARNING: Read and understand the safety
chapter before you operate the product.
Fuel
To use fuel
CAUTION: This product has a two-cycle
engine. Use a mixture of gasoline and two-
cycle engine oil. Make sure to use the
correct quantity of oil in the mixture.
Incorrect ratio of gasoline and oil can cause
damage to the engine.
Gasoline
CAUTION: Do not use gasoline with an
octane number less than 90 RON (87 AKI).
This can cause damage to the product.
CAUTION: Do not use gasoline with more
than 10% ethanol concentration (E10). This
can cause damage to the product.
• Always use new unleaded gasoline with a minimum
octane number of 90 RON (87 AKI) and with less
than 10% ethanol concentration (E10).
• Use gasoline with a higher octane number if you
frequently use the product at continuously high
engine speed.
Two-cycle engine oil
• Use only the two-cycle engine oil of high quality,
especially HUSQVARNA two-cycle oil. Use only the
oil of an air cooled engine.
• Mixture ratio 1:40 (2.5%).
• Oil of low quality and high oil/fuel ratio can decrease
the lifetime of catalytic converters.
• Speak to your dealer when you select an oil.
• If Husqvarna two-stroke oil is not available, you can
use another two-stroke oil of good quality that is
intended for air cooled engines. Contact your dealer
when you select oil.
• Do not use the two-stroke oil for water-cooled
outboard engines. The two-stroke oil is sometimes
referred to as outboard oil.
Gasoline,litre
5
12

OPERATION

Oil,litre
2.5%(1:40)
0,125
Gasoline,litre
10
15
20
To make the fuel mixture
Note: Always use a clean fuel container when you mix
the fuel.
Note: Do not make more than 30 days quantity of fuel
mixture.
1. Add half of the gasoline quantity.
2. Add the full quantity of oil.
3. Shake the fuel mixture to mix the contents.
4. Add the remaining gasoline quantity.
5. Shake the fuel mixture to mix the contents.
6. Fill the fuel tank.
To add fuel
• 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.
To start and stop
To examine before start
1. Examine the product for missing, damaged, loose or
worn parts.
2. Examine the nuts, screws and bolts.
3. Examine the blades.
4. Examine the locknut. Make sure that the locknut has
a minimum locking force of 1.5 Nm (1,1 ft lb). Torque
the locknut to 35-50 Nm (26-36 ft lb).
5. Examine the air filter.
6. Examine the throttle trigger lockout and the throttle
control.
7. Examine the stop switch.
8. Examine the product for fuel leaks.
To start a cold engine
1. Set the stop switch to the start position.
Oil,litre
0,25
0,375
0,50
537 - 005 - 23.05.2018