Troubleshooting - Echo RM-4300 Operator's Manual

Trouble
Engine - hard to start
- does not start
Engine Fuel at carburettor
cranks
Fuel at cylinder
Spark at end of
plug wire
Spark at plug
Engine
does not
crank
Engine runs Dies or accelerates poorly
 All trimmer service operations, other than items listed in the Operator's Manual, should be performed by competent
service personnel.
 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.

Troubleshooting

Not fuel at carburettor  Fuel filter clogged
 Fuel line clogged
 Carburettor
No fuel at cylinder  Carburettor
Silencer wet with fuel  Fuel mixture is too rich
No spark at end of plug  Ignition switch off
wire  Electrical problem
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 plugged
 Spark plug
 Carburettor
 Cooling system plugged
 Exhaust port / silencer plugged
WARNING
23
Cause
 Clean or replace
 Clean
 Ask your ECHO dealer
 Ask your ECHO dealer
 Open choke
 Clean / replace air filter
 Adjust carburettor
 Ask your ECHO dealer
 Turn switch on
 Ask your ECHO dealer
 Adjust 0.6 to 0.7 mm
 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
Remedy