Stihl SR 430 Manual page 42

yes
Machine runs trouble-free,
no further action necessary
SR 430, SR 450
2
Check operation
of stop switch:
– Function of stop switch:
– Setting lever on "F" = no connection
0
– Setting lever on " " = connection
– Install new throttle cable if necessary,
b 5.6, b 5.6.2
Powerful
spark?
Install new ignition module
b 5.2
Machine
runs?
yes
no
no
– Look for fault in fuel system or
– Check engine for leaks
– Check position of flywheel on
3
carburetor
crankshaft,
b 4.2, b 5.5
41