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Frequently Asked Questions

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Engine Pull Cord Kickback

Typically, engine kickback is caused by improper ignition (spark) timing. Timing problems can be caused by striking an object (i.e. lawnmower blade hitting a hard object) while the engine is running, resulting in a sheared flywheel key and/or bent crankshaft. Timing problems are also the cause of hard start or no start concerns and is the cause of serious performance problems.

Your best option may be to have the engine examined by a Briggs & Stratton Authorized Dealer. Your local dealer can determine if the crankshaft has become bent, and if so, if it can be replaced. In some cases a short block is necessary.

A good source for engine specifications and technical servicing information would be a Briggs & Stratton Repair Manual. The correct Repair Manual for your model engine is often listed in your engine's Illustrated Parts List.

Repair Manuals are available for purchase through our websites section or locally from a Briggs & Stratton Service Dealer.

A good source for engine specifications and technical servicing information would be a Briggs & Stratton Repair Manual (Lookup Manual by Engine Model.) The correct Repair Manual for your model engine is often listed in your engine's Illustrated Parts List.

Repair Manuals are available for purchase through our websites Repair Manuals section or locally from a Briggs & Stratton Authorized Dealer.


For your convenience, engine parts (crankshafts, carburetors, pistons, gaskets, etc.) can be purchased online through the Lawn Mower Parts, Repair Parts & Maintenance Products section of our website directly from the factory. If you know your part number and wish to order factory direct, please click the "Buy Online" link provided here.

Do-It-Yourself parts and products (oil, air filters, spark plugs, carburetor cleaner, etc.) can also be ordered online through the Maintenance & Accessories section of our website.



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Our user community provides a place for users to ask and answer questions of one another. Our staff also participates in this community on a regular basis. Please note that your question may take more than 24 hours to appear. If you are in need of an immediate answer please review our frequently asked questions or contact a local service dealer .

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Please complete the form below to contact us with your question. Provide as much information as possible. We make every effort to personally answer all questions within 3 BUSINESS days. If you are in need of an immediate answer please review our frequently asked questions or contact a local service dealer.

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  • Enter any equipment model numbers you may have


  • Look for STAMPED B&S ENGINE NUMBERS


    STAMPED - YYMMDDxx Identifies Manufacture date


  • 5HP=5, 18-1/2=18.5, 25=25.00


    Series (3 digits) or Torque (ft. lbs)


  • Quantum, Intek, Classic, Sprint, etc.


    Manufacturer of the Tractor, Generator, Lawn mower, etc.


  • What kind of product is the engine coupled to?


    Where was the equipment purchased?


  • When product was purchased. Format: mm/dd/yyyy.

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  • Zip + 4 xxxxx-xxxx Canada use xxx xxx format




  • format: xxx-xxx-xxxx  




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