![](/images/new-backgrounds/1112700/11270061x1.webp)
Power PrunerTM 31
Operator's Manual
Troubleshooting
EnginE PrOBLEM TrOUBLESHOOTing CHarT
Problem | Check | Status | Cause | remedy | |
|
|
|
|
| |
| fuel at carburetor | No fuel at carburetor | fuel strainer clogged | Clean or replace | |
|
|
| fuel line clogged | Clean or replace | |
|
|
| Carburetor | see your echo dealer | |
|
|
|
|
| |
| fuel at cylinder | No fuel at cylinder | Carburetor | see your echo dealer | |
|
|
|
|
| |
engine |
| muffler wet with fuel | fuel mixture too rich | Open choke | |
|
|
| Clean/replace air filter | ||
cranks - |
|
|
| adjust carburetor | |
starts hard/ |
|
|
| see your echo dealer | |
doesn't |
|
|
|
| |
spark at end | No spark | stop switch off | Turn switch to ON | ||
start | |||||
| of plug wire |
| electrical problem | see your echo dealer | |
|
|
| interlock switch | see your echo dealer | |
|
|
|
|
| |
| spark at plug | No spark | spark gap incorrect | adjust to .65mm (0.026 in.) | |
|
|
| Covered with carbon | Clean or replace | |
|
|
| fouled with fuel | Clean or replace | |
|
|
| Plug defective | replace plug | |
|
|
|
|
| |
| air filter | air filter dirty | Normal wear | Clean or replace | |
|
|
|
|
| |
| fuel filter | fuel filter dirty | Contaminants/residues in | replace | |
|
|
| fuel |
| |
|
|
|
|
| |
engine runs, | fuel vent | fuel vent plugged | Contaminants/residues in | Clean or replace | |
|
| fuel |
| ||
but dies or |
|
|
|
| |
spark Plug | Plug dirty/worn | Normal wear | Clean and adjust or replace | ||
does not | |||||
accelerate |
|
|
|
| |
Carburetor | improper adjustment | Vibration | adjust | ||
properly | |||||
|
|
|
| ||
| Cooling system | Cooling system | extended operation in | Clean | |
|
| dirty/plugged | dirty/dusty locations |
| |
|
|
|
|
| |
| spark arrestor | spark arrestor | Normal wear | replace | |
| screen | screen plugged |
|
| |
|
|
|
|
| |
engine does | N/a | N/a | internal engine problem | see your echo dealer | |
not crank |
|
|
|
| |
|
|
|
|
|
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.