Diagnose & TroubleshootPush Mowers
Select one of the symptoms below to find possible causes and common solutions for your MTD push mower.
Common Symptoms:
- Engine idles poorly
- Engine runs erratic
- Excessive Vibration
Engine idles poorly
Possible Causes |  | Corrective Actions |
1Spark plug is fouled, fault or gap is too wide | | Replace spark plug or reset gap to proper setting. |
2Dirty air filter | | Clean or replace air filter. |
3Carburetor is adjusted improperly | | Adjust carburetor according to your engine manual. |
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