Husqvarna 131RB Workshop Manual page 45

b) Connect a pressure tester to the fuel inlet on the
carburetor. Refer to
33-xx and 967 84 32-xx on page 18 .
c) Pump up the pressure to 0.5 bar.
d) Lower the carburetor in a container with gasoline
to find leaks. No leakage is permitted.
3. Examine the distance piece for cracks and damage
that can result in leakage. Replace the distance
piece if it is damaged.
4. Make sure that the sealing ring (A) is attached
correctly on the carburetor before the carburetor is
attached on the engine. The wide edge on the ring
must be nearest to the carburetor housing.
A
627 - 002 - 23.04.2018
Servicing tools for 967 84
5. Connect the fuel hoses and make sure that they are
attached correctly. Hold the air filter in position and
put the carburetor screws through the air filter holder
and carburetor. Put the carburetor gasket in position
and attach the carburetor tightly to the distance
piece with the screws.
Repair instructions - 45