what is the gap set at between the coil and flywheel on a 4.5 hp Briggs & Stratton motor

Jeff, April 2006

minimum clearence without making contact..
leave cover off,and with spark plug unscrewed & out, but in contact with housing, re connect hi tension lead to plug.now becuase thiers no compression i use a 18 volt battery drill driving correct magneto hexagon nut with suitable socket this way you can see how the spark is jumping across..

peter riley, May 2006

A business card works well.

tom, April 2006

.010 inches will work

Rick, April 2006