11.6.2 Troubleshooting Chart - Stihl 029, 039 Service Manual

STIHL 029, 039

11.6.2 Troubleshooting Chart

Start machine
in normal way
Does
engine
run?
Adjust carburetor -
see 11.5
Is
idle in
order?
Start
with automatic choke
Does
engine
run?
Machine
is in order
no
yes
no
Bypass the control valve,
yes
no
yes
Troubleshooting,
see 2.3 and 2.6
see 11.6.4
Check automatic choke,
see 11.6.3
no
Is
idle in
order?
Replace hose/connector
to control valve
no
Is
idle in
order?
yes
Pressure-test bellows,
see 11.6.6
69