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TROUBLESHOOTING EB910 / RT
46 X7501200801
© 09/22 ECHO Incorporated
TROUBLESHOOTING
Fuel vapors are extremely flammable and may cause fire and/or
explosion. Never test for ignition spark by grounding spark plug
near cylinder plug hole, otherwise serious personal injury may
result.
ENGINE PROBLEM TROUBLESHOOTING CHART
Problem Check Status Cause Remedy
Engine
starts
hard or
Engine
does not
start
Fuel at
carburetor
No fuel at
carburetor
Fuel strainer or
fuel line
obstructed
Clean or replace
See your dealer
Fuel at
cylinder
No fuel at
cylinder
Carburetor See your dealer
Muffler wet
with fuel
Fuel mixture
too rich
OPEN choke
Clean or replace
air filter
Adjust carburetor
See your dealer
Engine
starts
hard or
Engine
does not
start
Spark at
end of plug
wire
No spark
Ignition at
STOP position
Electrical
problem
Interlock switch
Move ignition
away from STOP
position.
See your dealer
Spark at
plug
Incorrect gap -
Covered with
carbon -
Fouled with
fuel - Plug
defective
Adjust to
0.65 mm
(0.026 in.)
Clean or replace
plug
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