SRM-2620U TROUBLESHOOTING
X7502341900 45
© 10/2016 ECHO Inc.
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TROUBLESHOOTING
ENGINE PROBLEM TROUBLESHOOTING CHART
Problem Check Status Cause Remedy
Engine
cranks -
starts
hard/
doesn’t
start
Fuel at
carburetor
No fuel at
carburetor
Fuel strainer
clogged - Fuel
line clogged -
Carburetor
Clean or replace
- See your Echo
dealer
Fuel at
cylinder
No fuel at
cylinder
Carburetor See your Echo
dealer
Muffler wet
with fuel
Fuel Mixture
too rich
OPEN choke -
Clean/replace air
filter - Adjust
carburetor - See
your Echo dealer
Spark at
end of plug
wire
No spark Stop switch
OFF - Electrical
problem -
Interlock switch
Turn switch to ON
- See your Echo
dealer
Spark at
plug
No spark Spark gap
incorrect -
Covered with
carbon - Fouled
with fuel - Plug
defective
Adjust to 0.65mm
(0.026 in.) - Clean
or replace plug
Engine
runs, but
dies or
does not
accelerat
e properly
Air filter Air filter dirty Normal wear Clean or replace
Fuel filter Fuel filter dirty Contaminants/
residues in fuel
Replace
Fuel vent Fuel vent
plugged
Contaminants/
residues in fuel
Clean or replace
Spark Plug Plug dirty/worn Normal wear Clean and adjust
or replace
Carburetor Improper
adjustment
Vibration Adjust
Cooling
System
Cooling
system dirty/
plugged
Extended
operation in
dirty/dusty
locations
Clean
Spark
Arrestor
Screen
Spark arrestor
screen
plugged
Normal wear Replace
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