Exploring The Briggs And Stratton Wiring Diagram Moo Wiring

How to Gap a Magneto / Coil on a Briggs and Stratton Lawnmower Engine. Improves SPARK. 1 step in a proper tune up. All models and horsepower. Procedure and S.. Buy a genuine Briggs and Stratton Armature Magneto 398811 for £49.81. We only sell genuine Garden Tractor Spares. Parts in stock and shipped worldwide!. Spark Plug Gap 0.03 in (0.75mm) Air gap between Flywheel and Magneto 0.006 - 0.010 in ( .15 - .25mm ) Useful Downloadable Resources. Magneto Air Gap --

The gap should be .006 to .010" at the magnets. I set the magneto back and snug it up. Then rotate the flywheel so the magnets are directly below the coil, and put a .010 feeler gage between the magneto legs and the magnets. Loosen up the magneto bolts to allow the magnets to pull it down onto the flywheel with the feeler gage between them.. How to set / adjust the armature air gap on small engines such as lawnmowers. How to set the coil and magneto air gap on Briggs and Stratton engine.