Husqvarna 543RBX Workshop Manual page 33

6. Remove the 2 screws (F) and the plate (G).
K
J
G
F
H
7. Remove the air filter holder (H), bracket holder (I)
and carburetor (J).
8. Remove the gasket (K).
9. Remove the small screw (L) and the throttle wire (M)
from the bracket holder (I).
10. Remove the screws (N) and (O) and the air filter
holder (H) from the bracket holder (I) and the
carburetor (J).
N
H
1239 - 001 -
I
L
M
J I
O
11. Remove the 4 screws and the cover. Remove the
control diaphragm (P), gasket (Q) and cover (V).
Examine the diaphragm for damage and wear on the
pin (R).
R
12. Connect the pressure tester to the fuel hose. Lower
the carburetor in a container with gasoline to find
leaks. Do a test of the pressure at 50 kPa.
13. If there is a leakage, remove the needle valve.
Q
P
V
Repair instructions- 33