101MS 201, MS 201 C, MS 201 T, MS 201 TC
12.6.3 Pump Diaphragm
– Troubleshooting, b 3.6
– Remove the carburetor,
MS 201 b 12.4,
MS 201 T b 12.5
: Take out the screw (1).
: Remove the end cover (2).
: Carefully remove the pump
diaphragm with gasket.
: Carefully separate the pump
diaphragm (1) and gasket (2)
1
7013RA323 TG
2
7013RA324 TG
2
7013RA325 TG
1
The diaphragm material is
subjected to continuous alternating
stresses and eventually shows
signs of fatigue, i.e. the diaphragm
distorts and swells and has to be
replaced.
– Check the pump diaphragm for
signs of damage and wear. Install
a new gasket.
– Check fuel strainer for
contamination and damage.
Clean or replace if necessary.
: Use a needle to remove the fuel
strainer (1) from the carburetor
body. Clean or replace the fuel
strainer.
– Reassemble in the reverse
sequence.
Installing
: Fit the new gasket (1) so that the
contours (arrows) match and it is
held in position by the pegs (2).
7013RA326 TG
1
7013RA327 TG
2
12
: Fit the pump diaphragm (1) on
the gasket so that the contours
(arrows) match and it is held in
position by the pegs (2).
: Fit the end cover (1) from below
so that the pump diaphragm and
gasket are still held in position.
: Position the end cover (1) so that
the contour (arrow) points in the
direction of the throttle and choke
shaft levers.
7013RA328 TG
2
1
2
7013RA329 TG
1