Small Engine Troubleshooting Problems? Ask a Mechanic Now.
Hello, my name is ***** ***** I will be happy to help you. Can retrieve the model number off of the engine? It should be located on the valve cover. The Model and code would be helpful. I will also research your Craftsman while you are checking that.
After researching your mower, you should have a Briggs & Stratton model 123K02-0511-E1.
If you do have this 12000 series engine, 3,600 rpm should be a Top No Load setting for your motor.
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