Stihl MS 290 Manual page 48

2
3
Check operation of
Master Control lever/switch shaft
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 on Look for fault in fuel system
Master Control lever/ or carburetor,
switch shaft check engine for leaks,
or separate stop switch check position of flywheel on
crankshaft
MS 290, MS 310, MS 390 47