Small Engine Specs

Specifications for small engines used on a variety of outdoor power equipment

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Briggs & Stratton Ignition Armature Air Gaps

The amount of clearance between the flywheel magnets and the ignition armature. The ignition armature is also referred to as ignition module, coil, laminate, magneto.

Model Series Type Armature Air Gap ( in. )
60000 L-Head Aluminum/Cast Sleeve Single Cylinder .006 / .010
80000 L-Head Aluminum/Cast Sleeve Single Cylinder .006 / .010
90000 L-Head Aluminum/Cast Sleeve Single Cylinder .006 / .010
10A000 Thru 10M000 L-Head Aluminum/Cast Sleeve Single Cylinder .006 / .010
110000 L-Head Aluminum/Cast Sleeve Single Cylinder .006 / .010
120000 L-Head Aluminum/Cast Sleeve Single Cylinder .006 / .010
130000 L-Head Aluminum/Cast Sleeve Single Cylinder .010 / .014
170000 L-Head Aluminum/Cast Sleeve Single Cylinder .010 / .014
171700 L-Head Aluminum/Cast Sleeve Single Cylinder .010 / .014
190000 L-Head Aluminum/Cast Sleeve Single Cylinder .010 / .014
191700 L-Head Aluminum/Cast Sleeve Single Cylinder .010 / .014
220000, 250000 L-Head Aluminum/Cast Sleeve Single Cylinder .010 / .014
280000 L-Head Aluminum/Cast Sleeve Single Cylinder .010 / .014
230000 L-Head Cast Iron Single Cylinder .010 / .014
240000 L-Head Cast Iron Single Cylinder .010 / .014
320000 L-Head Cast Iron Single Cylinder .010 / .014
400000, 420000, 460000 L-Head Opposed Twin Cylinder .010 / .014
50000 OHV Single Cylinder .012 / .020
85400 OHV Single Cylinder .012 / .020
97700, 99700 OHV Single Cylinder .006 / .012
115400, 117400, 118400 OHV Single Cylinder .012 / .020
120000 Horizontal Shaft OHV Single Cylinder .010 / .014
120000 Vertical Shaft OHV Single Cylinder .006 / .014
138400 OHV Single Cylinder .012 / .020
185400 OHV Single Cylinder .012 / .020
200000 OHV Single Cylinder .008 / .012
210000 Horizontal Shaft OHV Single Cylinder .008 / .012
210000 Vertical Shaft OHV Single Cylinder .008 / .012
235400, 245400 OHV Single Cylinder .008 / .012
280000 OHV Single Cylinder .010 / .014
310000 OHV Single Cylinder .010 / .014
290000, 294000, 303000 OHV Twin Cylinder .008 / .012
350000 OHV Twin Cylinder .008 / .012
380000 OHV Twin Cylinder .008 / .012
405000 OHV Twin Cylinder .008 / .012
445000 OHV Twin Cylinder .008 / .012
540000 OHV Twin Cylinder .008 / .012