Troubleshooting - Echo PB-7910T Operator's Manual

TROUBLESHOOTING

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
Fuel at
carburetor
Engine
starts
hard or
Engine
Fuel at
does not
cylinder
start
Spark at
end of plug
Engine
wire
starts
hard or
Engine
does not
start
Spark at
plug
46
Status
Fuel strainer or
No fuel at
fuel line
carburetor
obstructed
No fuel at
Carburetor
cylinder
Muffler wet Fuel mixture
with fuel too rich
Ignition at
STOP position
Electrical
problem
Interlock switch
No spark
Incorrect gap
- Covered
with carbon -
Fouled with
fuel - Plug
defective
PB-7910 H/T
Cause
Clean or replace
See your dealer
See your dealer
OPEN choke
Clean or replace
air filter
Adjust carburetor
See your dealer
Move ignition
away from STOP
position.
See your dealer
Adjust to
0.65 mm
(0.026 in.)
Clean or replace
plug
© 10/23 ECHO Incorporated
Remedy
X7501201800