Stihl MS 650 Manual page 58

2
3
Check operation of
Master Control lever:
– Short circuit wire chafed?
– Contact gap (contact spring)
– If necessary, install new ignition lead
and/or contact spring
– Re-connect short circuit wire
Powerful
yes
spark?
no
Install new
ignition module
yes no
Engine runs
Check "#"/"$" function Look for fault in fuel system
on Master Control or carburetor,
lever check engine for leaks,
check position of flywheel on
crankshaft
MS 650, MS 660 57