Storage - Echo HCS-4020 Owner's Manual

TROUBLESHOOTING
ENGINE PROBLEM TROUBLESHOOTING CHART
Problem Check
Fuel at
carburetor
Fuel at
Engine
cylinder
starts hard
or
Engine
does not
start Spark at
end of plug
wire
Spark at
plug
Air filter
Fuel filter
Fuel vent
Engine
runs, but
dies
Spark plug
or
Carburetor
Engine
does not
accelerate
Cooling
properly
system
Spark
arrestor
screen
Engine
does not
crank
38
Status
Fuel strainer or
No fuel at
fuel line
carburetor
obstructed
No fuel at
Carburetor
cylinder
Muffler wet Fuel mixture too
with fuel rich
Stop switch OFF
- Electrical
problem -
Interlock switch
No spark
Incorrect gap -
Covered with
carbon - Fouled
with fuel - Plug
defective
Air filter
Normal wear
dirty
Fuel filter Contaminants or
dirty residue in fuel
Fuel vent Contaminated
plugged fuel
Plug dirty
Normal wear
or worn
Improper
adjustment Vibration
Cooling Extended
system operation in dirty
dirty or or dusty
plugged locations
Spark
arrestor
Normal wear
screen
plugged
Internal engine
N/A
problem
HCS-3020 4020
Cause
Clean or replace
See your dealer
See your dealer
OPEN choke
Clean or replace
air filter
Adjust carburetor
See your dealer
Turn switch to ON
See your dealer
Adjust to 0.65mm
(0.026 in.)
Clean or replace
plug
Clean or replace
Replace filter or
replace fuel
Clean or replace
Clean and adjust
or replace
Adjust
Clean
Replace
See your dealer
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