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How to Maintain your Mower Engine
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Tune-up: Learn how to tune-up your engine. Tuning up is good for your engine and the environment. It will also save you money. Our interactive demo walks you through four easy steps for tuning up your mower. It is even easier with a Briggs & Stratton Maintenance Kit. According to environmental impact data, a properly tuned and maintained lawn mower makes a big difference:

  • Reduces mower emissions by up to 50%
  • Reduces costly fuel consumption up to 30%
  • And, extends the life of your engine!

To keep your mower operating smoothly throughout the lawn care season, remember these maintenance tips:


  • Check the oil level regularly - ideally every time you mow. Add oil up to the fill line on the dipstick as needed.
  • If you have a new mower, change the oil after the first five hours of use. After that, change the oil after every 50 hours of use or at the beginning of each lawn care season.

Keep the Blades Sharp

  • Keep your mower blades sharpened so that you are cutting your lawn cleanly and not "tearing" the grass. Your lawn mower dealer can do this for you.

Use Clean, Fresh Fuel

  • Clean, fresh fuel is essential for an engine to start quickly and operate efficiently.Gasoline deteriorates after 30 days and can negatively affect engine and starting performance.
  • Briggs & Stratton Fuel Stabilizer Plus gasoline additive can keep your fuel fresh year-round and help prevent gum deposits in the carburetor.
  • Or purchase a Fresh Start® continuous fuel preserver cap and cartridge for up to six months of hassle-free starting.

Cleaning a Clogged Mower Deck

  • When the mower deck is clogged with clippings, turn off the mower, disconnect the spark plug and then use a garden hose to wash away the material.
  • After spraying, remove any remaining clumps of grass that may interfere with the blade by using a stick or other tool - never use your hands or feet.


1–8 of 8 Questions  
  1. 1 answers
    1. This could be caused by many different things. Here is a link that will help you troubleshoot a no spark condition:

    1. Engine running rough can be either due to a dirty carburetor or a governor that needs to be adjusted. Here is a link that will help you with this:

    1. To locate any information on your engine, you will first need the model type and code. Please see the following FAQ for assistance in locating these numbers:

      Once you have this information you can find information on your engine here: Select engine as your product type and follow the directions for entering the model type and trim into the search fields.

  2. 1 answers
    1. There are not install instructions for this. Engine part should be installed by local service dealer.

    1. The linkage connections can be located in the repair manuals here:

    1. Best source of information is to contact the manufacturer of the mower.

  3. 1 answers
    1. This information is located in the engines repair manual located here:

    1. Thank you for your inquiry.

      What you are describing is symptomatic of a malfunctioning carburetor. You may have fuel that is going stale and clogging the internal carburetor passages or sticking the valves. Fuel can go stale (turns into a varnish) in as little as 3 weeks.

      Carburetor troubleshooting information can be located within the following FAQ:

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