24 
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 |
|
|
|
| |
|
|
|
|
|
DANGER
Fuel vapors are extremely flammable and may cause fire and/or explosion. Never test for ignition spark by ground- ing spark plug near cylinder plug hole, otherwise serious personal injury may result.
