Troubleshooting - Echo CS-4510-18 Operator's Manual

Problem
Engine — hard to start
does not start
—
Engine Fuel at
cranks carburetor
Fuel at
cylinder
Spark at end
of plug wire
Spark at plug
Engine
does not
crank
Engine Dies or accelerates poorly
runs

TROUBLESHOOTING

No fuel at • Fuel filter clogged
carburetor
• Fuel line clogged
• Carburetor
No fuel at • Carburetor
cylinder
Muffler wet with • Fuel mixture is too rich
fuel
No spark at end • Electrical problem
of plug wire
No spark at plug • Spark gap incorrect
• Covered with carbon
• Fouled with fuel
• Spark plug defective
• Internal engine problem
• Air filter dirty
• Fuel filter dirty
• Fuel vent blocked
• Spark plug
• Carburetor
• Cooling system blocked
• Exhaust port / spark
arrestor screen blocked
33
Cause
• Clean or replace
• Clean
• Ask your ECHO dealer
• Ask your ECHO dealer
• Open choke
• Clean / replace air filter
• Adjust carburetor
• Ask your ECHO dealer
• Ask your ECHO dealer
• Adjust 0.65 mm (0.026 in.)
• Clean or replace
• Clean or replace
• Replace plug
• Ask your ECHO dealer
• Clean or replace
• Clean or replace
• Clean
• Clean and adjust / replace
• Adjust
• Clean
• Clean
WARNING
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.
Remedy
CS-4510