Troubleshooting - Echo PB-410 Operator's Manual

T
ROUBLESHOOTING
Problem Check
Fuel at carburetor
Fuel at cylinder
Engine cranks -
starts hard/
doesn't start
Spark at end of plug
Spark at plug
Air filter
Fuel filter
Fuel vent
Engine runs, but
dies or does not
Spark plug
accelerate
Carburetor
properly
Cooling system
Spark arrestor
screen
Engine does not
crank
Engine runs,
Blower pipe
blower doesn't
work or is
weak/uneven
Fuel vapors are extremely flammable and may cause fire and/or explosion. Never test for ignition spark by ground-
ing spark plug near cylinder plug hole, otherwise serious personal injury may result.
TROUBLESHOOTING CHART
Status
No fuel at carburetor
No fuel at cylinder
Muffler wet with fuel
No spark
wire
No spark
Air filter dirty
Fuel filter dirty
Fuel vent plugged
Plug dirty/worn
Improper adjustment
Cooling system
dirty/plugged
Spaek arrestor screen
plugged
N/A N/A
Pipe clogged
Pipe loose
Pipe damaged
O
PERATOR
Cause
Fuel strainer clogged
Fuel line clogged
Carburetor
Carburetor
Fuel Mixture is too rich
Stop switch off
Electrical problem
Spark gap incorrect
Covered with carbon
Fouled with fuel
Plug defective
Normal wear
Contaminants/residues
in fuel
Contaminants/residues
in fuel
Normal wear
Vibration
Extended operation in
dirty/dusty locations
Normal wear
Internal engine problem
Build-up of debirs
Vibration
Wear/Misuse
WARNING
P B
OWER LOWER
' M
S ANUAL
Remedy
Clean or replace
Clean or replace
Ask your ECHO dealer
Ask your ECHO dealer
Open choke
Clean/replace air filter
Adjust carburetor
Ask your ECHO dealer
Turn switch to ON
Ask your ECHO dealer
Adjust to 0.65 mm (0.026 in.)
Clean or replace
Clean or replace
Replace plug
Clean or replace
Replace
Clean or replace
Clean and adjust or replace
Adjust
Clean
Replace
Ask your ECHO dealer
Unclog
Tighten
Replace
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