Echo PB-403 - Manual (Page 18)

18
Problem
Engine - starts hard
Engine - does not start Cause Remedy
Engine
Cranks Fuel at
carburetor No fuel at
carburetor Fuel strainer clogged
Fuel line clogged
Carburetor Clean
Clean
See your ECHO dealer
Fuel at
cylinder No fuel at
cylinder Carburetor See your ECHO dealer
Muffler wet
with fuel
Fuel Mixture is too rich Open choke
Clean/replace air filter
Adjust carburetor
See your ECHO dealer
Spark at end
of plug wire No spark
at end of
plug wire Stop switch off
Electrical problem
Interlock switch Turn switch on
See your ECHO dealer
See your ECHO dealer
Spark at plug No spark
at plug Spark gap incorrect
Covered with carbon
Fouled with fuel
Spark plug defective Adjust 0.65mm (0.026in.)
Clean or replace
Clean or replace
Replace plug
Engine
does not
crank Internal engine problem See your ECHO dealer
Engine
runs Dies or accelerates poorly Air filter dirty
Fuel filter dirty
Fuel vent plugged
Spark plug
Carburetor
Cooling system plugged
Exhaust port/spark arrestor
screen plugged Clean or replace
Replace
Replace
Clean and adjust/replace
Adjust
Clean
Clean
Engine
runs
properly Blower does not work,
is weak or uneven Blower Pipe clogged, loose or
damaged Unclog
Tighten
Replace
T
ROUBLESHOOTING
WARNING DANGER
Fuel vapors are extremely flammable and may cause fire and/or explosion. Never test for ignition spark near an
open spark plug opening, otherwise serious personal injury may result.