Power PrunerTM 31
Operator's Manual
Troubleshooting
EnginE PrOBLEM 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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engine |
| muffler wet with fuel | fuel mixture too rich | Open choke | |
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| Clean/replace air filter | ||
cranks - |
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| adjust carburetor | |
starts hard/ |
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| see your echo dealer | |
doesn't |
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spark at end | No spark | stop switch off | Turn switch to ON | ||
start | |||||
| 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 | Clean or replace | |
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| fuel |
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but dies or |
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spark Plug | Plug dirty/worn | Normal wear | Clean and adjust or replace | ||
does not | |||||
accelerate |
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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 | spark arrestor | Normal wear | replace | |
| screen | screen plugged |
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engine does | N/a | N/a | internal engine problem | see your echo dealer | |
not crank |
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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.
