Echo CS-400 Operator's Manual page 54

TROUBLESHOOTING
ENGINE PROBLEM TROUBLESHOOTING CHART
Problem Check
Engine Air filter
runs, but
dies
Fuel filter
or
Engine
Fuel vent
does not
accelerate
properly
Spark plug
Engine
runs, but
Carburetor
dies
or
Cooling
system
Engine
does not
Spark
accelerate
arrestor
properly
screen
Engine
does not
crank
Fuel vapors are extremely flammable and can cause fire and/or
explosion. Never test for ignition spark by grounding spark plug
near cylinder plug hole, otherwise serious personal injury can
result.
54
Status
Air filter dirty Normal wear
Fuel filter Contaminants
dirty or residue in fuel
Fuel vent Contaminated
plugged fuel
Plug dirty or
Normal wear
worn
Improper
Vibration
adjustment
Extended
Cooling
operation in
system dirty
dirty or dusty
or plugged
locations
Spark
arrestor
Normal wear
screen
plugged
Internal engine
N/A
problem
Cause
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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CS-400
Remedy
X7503256004