Troubleshooting - Echo SRM-410X Operator's Manual

SRM-410X
3. After sharpening teeth, check
each tooth radius for evidence
of a square (sharp) corner. Use
the round (rat tail) file to renew
the radius.

TROUBLESHOOTING

ENGINE PROBLEM TROUBLESHOOTING CHART
Problem Check
Fuel at
carburetor
Engine Fuel at
cylinder
starts hard
or
Engine
does not Spark at
end of plug
start
wire
Spark at
plug
X7502168400
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CUTTING
TOOTH
AREA
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
Incorrect gap -
No spark
Covered with
carbon - Fouled
with fuel - Plug
defective
TROUBLESHOOTING
30º
CUTTING
TOOTH
RADIUS
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
0.65 mm
(0.026 in.)
Clean or replace
plug
GULLET
(RADIUS)
Remedy
47