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View Full Version : My 18.5 briggs sounds like it knocks?


45679rs
Jul 24, 2008, 08:41 PM
I have a 18.5 twin 2 briggs and stratton,sounds like its knocking,does not smoke at all! No loss of power,and starts great,but if your just riding around or setting at an idle it sounds like its going to throw a rod I don't get it??

KISS
Jul 25, 2008, 12:09 AM
Start simple. Is the gas octane right?