TROUBLESHOOTING SRM-2120
44 X7507821400
© 10/24 ECHO Incorporated
6. DO NOT file the ‘gullet’ (radius)
of the tooth with the flat file. The
radius must remain. A sharp
corner will lead to a crack and
blade failure.
7. 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
Fuel vapors are 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.
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
CUTTING
TOOTH
AREA
CUTTING
TOOTH
RADIUS
GULLET
(RADIUS)