26 
Troubleshooting
TROUBleSHOOTING CHART
Problem | Check | Status | Cause | Remedy | |
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| Fuel at carburetor | No fuel at carburetor | Fuel strainer clogged | Clean or replace | |
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| Fuel line clogged | Clean or replace | |
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| Carburetor | See your Echo dealer | |
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| Fuel at cylinder | No fuel at cylinder | Carburetor | See your Echo dealer | |
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| Muffler wet with fuel | Fuel Mixture too rich | Open choke | |
Engine cranks - |
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| Clean/replace air filter | |
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| Adjust carburetor | ||
starts hard/ |
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| See your Echo dealer | ||
doesn't |
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start | Spark at end | No spark | Stop switch off | Turn switch to ON | |
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| of plug wire |
| Electrical problem | See your Echo dealer | |
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| Interlock switch | See your Echo dealer | |
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| Spark at plug | No spark | Spark gap incorrect | Adjust to .65mm (0.026 in.) | |
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| Covered with carbon | Clean or replace | |
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| Fouled with fuel | Clean or replace | |
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| Plug defective | Replace plug | |
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| Air filter | Air filter dirty | Normal wear | Clean or replace | |
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| Fuel filter | Fuel filter dirty | Contaminants/residues in | Replace | |
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| fuel |
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Engine runs, | Fuel vent | Fuel vent plugged | Contaminants/residues in fuel | Clean or replace | |
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Spark Plug | Plug dirty/worn | Normal wear | Clean and adjust or replace | ||
but dies or | |||||
does not |
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accelerate | Carburetor | Improper adjustment | Vibration | Adjust | |
properly | |||||
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| Cooling System | Cooling system | Extended operation in | Clean | |
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| dirty/plugged | dirty/dusty locations |
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| Spark Arrestor Screen | Spark arrestor screen | Normal wear | Replace | |
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| plugged |
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Engine does | N/A | N/A | Internal engine problem | See your Echo dealer | |
not crank |
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Engine runs, | Blower pipe | Pipe clogged | Unclog | ||
blower doesn't |
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| Pipe loose | Vibration | Tighten | ||
work or is |
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weak/uneven |
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| Pipe damaged | Wear/Misuse | Replace | ||
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DANGER
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.