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CS-370
TROUBLESHOOTING
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.
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 • Covered with carbon • Clean or replace
plug plug • 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
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