Husqvarna 243RJ Workshop Manual page 22

3
A
B
C
D
20
Fuel system
Check the needle valve and the lever arm
for damage or wear.
Replace damaged components with new
ones.
Remove the air intake housing.
Remove the pump diaphragm.
Check the diaphragm for damage.
Remove the fuel screen and clean it or
attach a new one.
Check the needle valve for damage on the
tip and in the lever arm groove.
Check the lever arm for damage to the
groove for the needle valve and wear on
the mounting points towards the control
diaphragm.
Replace damaged components with new
ones.
Remove the air intake housing (A).
Note how the connecting rod (B) is fi tted.
Do not lose the sealing rings (C) and
check these are not damaged.
Remove the screw (D) and lift off the air
intake housing (A).
Remove the bolt holding the cover over
the pump diaphragm.
Lift off the cover (A), the gasket (B) and
the diaphragm (C).
Check the diaphragm for damage to the
valve tongues. If the valve tongues are
bent, the pump will not function in a satis-
factory manner.
Hold it up to a light as well to discover any
holes in the material.
Carefully remove the fuel screen (D),
using a needle for example. Clean or
replace the fuel screen.
NOTE!
During assembly the pump
diaphragm should lie closest
to the carburettor housing.