Echo PB-2520 Operator's Manual page 32

TROUBLESHOOTING
ENGINE PROBLEM TROUBLESHOOTING CHART
Problem Check
Fuel at
carburetor
Fuel at
cylinder
Engine
cranks -
Spark at
starts
end of plug
hard/
wire
doesn't
start
Spark at
plug
Safety
Interlock
Air filter
Fuel filter
Engine
runs,
but dies
Spark Plug Plug dirty/worn Normal wear
or
does not
Carburetor
acceler-
ate
Cooling
properly
System
Spark
Arrestor
Screen
32
Status
Fuel strainer
clogged
No fuel at
Fuel line
carburetor
clogged
Carburetor
No fuel at
Carburetor
cylinder
Muffler wet Fuel Mixture
with fuel too rich
Stop switch
OFF
Electrical prob-
lem
Interlock switch
No spark
Spark gap
incorrect
Covered with
carbon
Fouled with fuel
Plug defective
Switch not Suction tube or
activated
Air filter dirty Normal wear
Fuel filter dirty Contaminants/
residues in fuel Replace
Fuel vent Contaminants/
residues in fuel Clean or replace
plugged
Improper
Vibration
adjustment
Cooling Extended oper-
system dirty/ ation in dirty/
plugged dusty locations
Spark arrestor
screen Normal wear
plugged
Cause
Clean or replace
See your dealer
See your dealer
OPEN choke
Clean/replace air
filter
See your dealer
Turn switch to ON
See your dealer
See your dealer
Adjust to 0.65mm
(0.026 in.)
Clean or replace
spark plug
Re install Suction
fan housing tube, or tighten
cover not
properly housing cover.
assembled
Clean or replace
Clean and adjust
or replace
See your dealer
Clean
Replace
© 8/2017 ECHO Inc.
PB-2520
Remedy
knob on fan
X7501190100