Wheeled Earth Auger Startup Troubleshooting
| Fault Symptom | Fault Analysis | Solution |
| Fails to Start | Is the kill switch turned off? | Turn on the kill switch |
| Is there sufficient fuel? | Refuel adequately | |
| Hard to Start | Electrical System Check | |
| No current/weak spark from spark plug | Clean or replace spark plug | |
| Severe carbon buildup on spark plug | Clean or replace | |
| Is spark plug electrode gap within specification? | Adjust gap | |
| Is ignition wire damaged/disconnected? | Replace | |
| Are flywheel/ignition coil screws loose? | Adjust and tighten | |
| Is flywheel-coil gap within specification? | Adjust and tighten | |
| Carburetor System Check | ||
| Is choke valve excessively closed? | Open appropriately | |
| Is throttle opening too wide? | Reduce appropriately | |
| Is fuel mixture too rich? | Adjust carburetor mixture screw | |
| Is water present in fuel? | Drain and replace fuel | |
| Is fuel mixture too lean? | Adjust carburetor mixture screw | |
| Is fuel filter/pipe clogged? | Inspect and replace | |
| Is vacuum port clogged? | Clear or replace | |
| Is carburetor gasket leaking? | Inspect/replace and tighten | |
| Is carburetor internal oil passage gummed up or clogged? | Inspect and replace |