Fixed Jet; Pump Diaphragm - Stihl SR 430 Manual

9.6.3

Fixed Jet

1
– Remove the metering
diaphragm, b 9.6.1
: Unscrew the fixed jet (1) with a
suitable screwdriver.
– Reassemble in the reverse
sequence.
9.6.4

Pump Diaphragm

– Remove the carburetor, b 9.5
: Take out the screw (arrow).
66
1
: Carefully remove the end
cover (1).
: Carefully remove the gasket with
pump diaphragm from the end
cover.
1
2
: Carefully separate the pump
diaphragm (1) and gasket (2).
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.
1
: Check fuel strainer for
contamination and damage.
Clean or replace if necessary.
– Reassemble in the reverse
sequence.
Installing
2
2
: Fit the gasket (1) so that the
contours (arrows) match and it is
held in position by the pegs (2).
SR 430, SR 450
1