P
RO
A
TTACHMENT
S
ERIES
O
PERATOR
'
S
M
ANUAL
25
T
ROUBLESHOOTING
Problem
Engine -- starts hard
Engine -- does not start
C ause
R emedy
Engine
C ranks
Fuel at
carburetor
No fuel at
carburetor
Fuel strainer clogged
Fuel line clogged
C arburetor
C lean
C lean
See your E C HO dealer
Fuel at
cylinder
No fuel at
cylinder
C arburetor
See your E C HO dealer
Muffler wet
with fuel
Fuel Mixture is too rich
Open choke
C lean/replace air filter
Adjust carburetor
See your E C HO dealer
Spark at end
of plug wire
No spark
at end of
plug wire
Stop switch off
Electrical problem
Interlock switch
Turn switch on
See your E C HO dealer
See your E C HO dealer
Spark at plug
No spark
at plug
Spark gap incorrect
C overed with carbon
Fouled with fuel
Spark plug defective
Adjust 0.65mm (0.026in.)
C lean or replace
C lean or replace
Replace plug
Engine
does not
crank
Internal engine problem
See your E C HO dealer
Engine
runs
D ies or accelerates poorly
Air filter dirty
Fuel filter dirty
Fuel vent plugged
Spark plug
C arburetor
C ooling system plugged
Spark arrestor screen
plugged
C lean or replace
Replace
Replace
C lean and adjust/replace
Adjust
C lean
C lean
WARNING DANGER
Fuel vapors are extremely flammable and may cause fire and/or explosion. Never test for ignition spark near an open
spark plug opening, otherwise serious personal injury may result.
