Echo CS-550P Instruction Manual - Troubleshooting

29

CS-550P

TROUBLESHOOTING

Problem

Engine

—

hard to start

Cause

Remedy

—

does not start

Engine

Fuel at

No fuel

• Fuel filter clogged

• Clean or replace

cranks

carburetor

at carburetor

• Fuel line clogged

• Clean

• Carburetor

• Ask your ECHO dealer

Fuel at

No fuel at

• Carburetor

• Ask your ECHO dealer

cylinder

cylinder

Muffler wet

• Fuel mixture is too rich

• Open choke

with fuel

• Clean/replace air filter

• Adjust carburetor

• Ask your ECHO dealer

Spark at

No spark at

• Ignition switch off

• Turn switch on

end of

end of plug

• Electrical problem

• Ask your ECHO dealer

plug wire

wire

• Spark gap incorrect

• Adjust 0.6 mm to 0.7 mm

Spark at

No spark at

(0.024 to 0.028 in.)

plug

plug

• Covered with carbon

• Clean or replace

• Fouled with fuel

• Clean or replace

• Spark plug defective

• Replace plug

Engine

• Internal engine problem

• Ask your ECHO dealer

does not

crank

Engine

Dies or

• Air filter dirty

• Clean or replace

runs

accelerates poorly

• Fuel filter dirty

• Clean or replace

• Fuel vent blocked

• Clean

• Spark plug

• Clean and adjust/replace

• Carburetor

• Adjust

• Cooling system blocked

• Clean

• Exhaust port/spark

• Clean

arrestor screen blocked

   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.