Small Engines (Lawn Mowers, etc.)/John Deere STX 38

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Expert: John C. Bridgers Sr. - 6/30/2007


Question
Hello,
I just received a STX 38. I just had it service. I changed the sparkle plug, fuel filter, oil, and air filter. I tried it out and it mowed fine for about 5 minutes and then quit. I didn't know what was wrong so I sat their for about 3-5 minutes and tried it again. It started and  worked for a few minutes and quit again. This repeated until I finally gave up and put it away. Any thoughts? It has the 12.5 Kohler motor. I'm not sure of the year, but I'm guessing it is 20 years old?

Answer
Hello Saul:

If this Engine is 20 Years Old, then it May have Point Set and Not Solid State Ignition. Send me the Model Numbers Off the Engine, Please. With these I can Locate the Proper Manual and Better Assist you. The Numbers Should be Stamped Into the Blower Housing (metal engine cover) Above the Spark Plug. Usually this is an Indicaton of a Bad Coil/Ign Module or in your Case it May mean a Bad Point Set. The Engine Model Numbers will Determine this. Thanks.

Respectfully

John

Small Engines (Lawn Mowers, etc.)

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John C. Bridgers Sr.

Expertise

Small Engine Service Center Co-Owner - ATVs, Mowers, Trimmers, Snow throwers, and Many Other Small Engine Operated Equipment. I can answer questions pertaining to Most Small Engines (Air and Water Cooled) and their Associated Equipment as well as Lawn and Garden Equipment, e.g. riders, tillers, trimmers, cement mixers, chainsaws, etc. I have been repairing small engines for 34 years. Briggs & Stratton, Tecumseh, Kohler, Lawn Boy, Stihl, Poulan, Mac, and Honda; to name a few.

Experience

I have been repairing small engines for 34 years. Briggs & Stratton, Tecumseh, Kohler, Lawn Boy, Stihl, Poulan, Mac, and Honda; to name a few.

Education/Credentials
Technical College for Gasoline and Diesel Engines. This was a Full Course on Complete Dis-assembly and Repair of ALL Components pertaining to Engines, Transmissions, Rear Ends, Electrical. I Found the Small Engines to be Interesting because they are Small and Simple.

Past/Present Clients
I have worked on small air/water cooled engines for 34 Years. I performed warranty work for Lowes of Wilson and other retailers in the area. I Own a Yard Maintenance and Certified Small Engine Repair Service Center.

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