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how do i time my 12 hp briggs&straton lawn mower?

mower gets gas and has spark. i was told it needs timed.
jim t, November 2009
The ignition timing is fixed - assuming the flywhel key is OK, it can't be wrong.

The valve timing must be correct unless the engine has been completely rebult.

phil_saunders(a)bigfoot.com

Phil Saunders, November 2009
link Click here to see other fixes for Briggs & Stratton 12HP.