Operation Manual

136 MS 241 C
Version with handle and
carburetor heating
: Remove screw (1)
: Remove thermostatic switch (2)
: Remove the end cover (3)
If the gasket and pump diaphragm
are stuck to the carburetor, they
must be removed very carefully.
All versions
– Carefully remove the pump
diaphragm with gasket from the
end cover
: Carefully separate the pump
diaphragm (2) and gasket (1)
– always use a new gasket
The diaphragm material is
subjected to continuous alternating
stresses and eventually shows
signs of fatigue. In other words, the
diaphragm distorts and swells and
must be replaced.
2410RA362 TG
1
2
3
2310RA266 TG
1
2
– Examine the pump diaphragm for
signs of damage and wear, fit a
new gasket
– Examine fuel strainer for
contamination and damage,
clean or replace if necessary
: Pull fuel strainer (1) with needle
out of the carburetor housing and
clean or replace it
– Reassemble parts in reverse
order
Installation
: Position gasket (1) and pump
diaphragm (2) on the end
cover (3) so that the
protrusions (arrows) match and
are secured in the pins (4)
2310RA267 TG
1
2310RA268 TG
4
2
4
1
3
– Position the end cover (1) on the
carburetor housing from below so
that the gasket and pump
diaphragm remain secured to the
end cover
: Orient the end cover (1) so that
the protrusion (arrow) faces the
lever of the throttle and choke
shaft
Version with heating
: Move the end cover (1) back and
forth slightly until the pegs on the
end cover engage in the holes in
the carburetor housing
: Position the thermostatic
switch (2) so that it rests against
the raised part (arrow)
– Check that the pump diaphragm
and gasket are correctly seated
: Screw in the screw (3) and
tighten it
2410RA363 TG
1
2410RA364 TG
2
3
1