Husqvarna 226R, Workshop Manual

Page: 19 / 58

3
18
502 02 61-02
Fuel system
Dismantle the lever arm and needle valve
to check for wear and replacement if
necessary. Loosen the screw and lift off the lever,
axle, needle valve and spring.
Exercise care so that the spring does not
fl y out.
Check the lever arm and needle valve for
wear.
Replace damaged parts with new parts.
Check the wear to the lever arm partly
by the contact points against the control
diaphragm and partly by the cut-outs for
the needle valve.
Also check wear to the tip of the needle
valve and the groove for the lever arm.
Replace damaged parts with new parts.
Replace the needle valve’s seat. Press out the needle valve’s seat for
replacement. Use a suitable punch
Ø 4.5 mm.
NOTE!
Replace the seat, needle valve and
lever arm at the same time.
The needle valve’s seat should be
pressed in level with the carburettor
housing. Use a vice with soft jaw
guards to avoid damage to the
needle valve’s seat.
Check the position of the lever arm.
Assemble the parts in the reverse order as
set out for dismantling.
Check that the lever arm lies fl ush with the
diaphragm housing.
Too high setting = too much fuel.
Too low setting = too little fuel.