Troubleshooting - Echo PB-755S H Operator's Manual

TROUBLESHOOTING

TROUBLESHOOTING
ENGINE PROBLEM TROUBLESHOOTING CHART
Problem Check
Fuel at
carburetor
Fuel at
cylinder
Engine
cranks -
starts
hard/
doesn't Spark at
start end of plug
wire
Spark at
plug
34
Status
Fuel strainer
clogged
No fuel at
Fuel line
carburetor
clogged
Carburetor
No fuel at
Carburetor
cylinder
Muffler wet Fuel Mixture
with fuel too rich
Stop switch
OFF
No spark Electrical prob-
lem
Interlock switch
Spark gap
incorrect
Covered with
No spark
carbon
Fouled with
fuel
Plug defective
PB-755S H/T
Cause
Clean or replace
Clean or replace
See your Echo
dealer
See your Echo
dealer
OPEN choke
Clean/replace air
filter
See your Echo
dealer
Turn switch to
ON
See your Echo
dealer
See your Echo
dealer
Adjust to 0.65mm
(0.026 in.)
Clean or replace
Clean or replace
Replace plug
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Remedy
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