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Frequently Asked Questions

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Timing the Valves

How do I time the valves?

Valve timing is generally performed by matching either a dot or dash mark on the cam gear with a dash or dot on the crankshaft gear. If your engine has a ball bearing, the mark would be located on the crankshaft counter-balance. It is important that the marks match, EXACTLY. One mark will be on the top of a tooth on the gear, the corresponding mark will be found on the bottom of a tooth on the other gear.

For examples of this, please download our Crankshaft/Camshaft Synchronization PDF (PDF) and Quantum/Intek camshaft timing mark image.

When performing the valve timing, it is unnecessary to be concerned with piston position (it will NOT normally be at TDC when doing this).

A good source for engine specifications and technical servicing information would be a Briggs and 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 Learning Resources page section or locally from a Briggs & Stratton Authorized Dealer.

Other helpful maintenance and instructional guides (Small Engine Care & Repair #CE8155) can also be ordered through this area.

Please visit our Identify Your Model Number page for help in finding the engine's numbers. For an explanation of our numbering system, please visit our page.

In any event, your best source of information regarding any engine concern would be a Briggs & Stratton Authorized Dealer. Your Briggs & Stratton Authorized Dealer has all the information relating to Briggs & Stratton warranty information, replacement engines, short blocks, parts, pricing, service/repair, specifications, etc.

For your convenience, we offer three easy ways to locate your nearest Briggs & Stratton Authorized Dealers:

  • Use our website's Service Dealer Locator.

  • Visit and enter "Lawn Mowers" or "Engines-Gasoline" in the Category search field and your Postal Code in the Location search field.

  • Call the Briggs & Stratton Automated Hotline at (800) 444-7774. This hotline is available 24 hours a day/7 days a week and features voice recognition technology to assist you in finding the Briggs & Stratton Authorized Dealers in your area. Automated maintenance tips, product information, and FAQs are also offered through voice activated menus.

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