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Spark Plug 57-9340
This part 57-9340 is compatible with:
- Product Type:
- Generator, Lawn Mower, Small Engine
- Brands:
- Toro, Wheel Horse, Generac
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Spark Plug Customer Reviews
Common Problems Fixed by the Spark Plug
Based on customer reports and repair data, this part commonly fixes these issues:
Lawn mower won't start
Chainsaw won't start
Small engine won't start
Generator won't start
Small engine hard to start
Lawn mower starts then stalls
Lawn mower is hard to start
Small engine runs poorly
Generator runs rough
Lawn mower runs rough
About the Spark Plug
Inspect the spark plug for signs of wear or damage. If the porcelain insulator is cracked, an electrode is burned away or damaged, or there is heavy carbon buildup at the electrode, replace the spark plug. To determine if the spark plug is defective, use a spark plug tester. You should see a strong spark between the tester’s terminals when the engine is cranking. If there is no spark, this indicates that the spark plug is defective and should be replaced.
Repair Help by Brands and Product Type
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