Carburetor, Dismantling; Dismantling The Carburetor - Husqvarna 525P4S Workshop Manual

7.14 Dismantling the carburetor

Carefully remove the metering diaphragm (A) and
gasket (B).
Check the diaphragm for holes and wear on the pin
(C).
Replace the diaphragm if required.
Connect pressure tester 531 03 06-23 to the fuel
hose nipple.
Lower the carburetor in a vessel with petrol in order
to discover any leaks more easily.
Test the pressure at 50 kPa.
No leakage is permitted.
In the event of leakage – remove the needle valve.
Loosen the bolt and remove the lever arm, axle,
needle valve and spring.
Repair instructions
B
A
C
39
English -