Stihl MS 440 Service Manual page 54

2
3
Check operation of
Master Control lever
or separate stop switch
– Short circuit wire chafed?
– Contact gap (contact springs)
If necessary, install new ignition lead
and/or contact springs
Re-connect short circuit wire
Powerful
yes
spark?
no
Install new
ignition module
Engine
yes no
runs
Check "#"/"$" function Look for fault in fuel system
on Master Control lever or carburetor,
or check engine for leaks,
separate stop switch check position of flywheel on
crankshaft
MS 440, MS 440 C 53