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View Full Version : 15.5 briggs&stratton ohv lawn mower


mashley2007
May 6, 2012, 06:52 AM
I have a 15.5 briggs& stratton engine that is 12 years old. Has always ran great,
But now when I start it, it runs real smooth, but it smokes real bad. Any helpful
Ideas would be greatly appreciated.

TxGreaseMonkey
May 6, 2012, 11:57 AM
This is a common problem on B&S engines. Typically, you need to remove and scrape the carbon from the head, piston, and valves every 100 hours. The Teflon coated head gasket is usually reuseable--tighten head bolts 140 in.-lbs.