TM 5-4240-501-14P GENERAL INFORMATION BRIGGS & STRATTON NUMERICAL MODEL NUMBER SYSTEM This handy chart explains  the  unique  Briggs  &  Stratton  numerical  model  designation  system.  It  is  possible  to  determine most of the important mechanical features of the engine by merely knowing the model number.  Here is how it works: A    The first one or two digits indicate the CUBIC INCH DISPLACEMENT. B    The first digit after the displacement indicates BASIC DESIGN SERIES, elating to cylinder construction, ignition, general configuration, etc. C.  The second digit after the displacement indicates POSITION OF CRANKSHAFT AND TYPE OF CARBURETOR. D.  The   third   digit   after   the   displacement   indicates   TYPE   OF   BEARINGS   and whether or not the engine is equipped with REDUCTION GEAR or AUXILIARY DRIVE. E.  The last digit indicates the TYPE OF STARTER FIRST DIGIT SECOND DIGIT THIRD DIGIT FOURTH DIGIT AFTER DISPLACEMENT AFTER DISPLACEMENT AFTER DISPLACEMENT AFTER DISPLACEMENT CRANKSHAFT, BEARINGS, CUBIC INCH BASIC CARBURETOR REDUCTION GEARS DISPLACEMENT DESIGN SERIES GOVERNOR & AUXILIARY DRIVES TYPE OF STARTER 6 0 0 - 0- Plain Bearing 0-Without Starter 8 1 1 -Horizontal 1 - Flange Mounting 1 - Rope Starter 9 2 Vacu-Jet Plain Bearing 10 3 2-Horizontal 2-Ball Bearing 2- Rewind Starter 11 4 Pulsa-Jet 13 5 3-Horizontal 3- Flange Mounting 3 - Electric-110 Volt, (Pneumatic) 14 6 Flo-Jet Ball Bearing Gear Drive (Government) 17 7 4-Horizontal 4- 4 - Elec Starter- (Mechanical) 19 8 Flo-Jet Generator -12 Volt, 20 9 Belt Drive 23 5-Vertical 5 - Gear Reduction 5 - Electric Starter 24 Vacu-Jet (6 to 1) Only - 12 Volt, 25 Gear Drive 30 6 -  6 - Gear Reduction 6 - Alternator Only * 32 (6 to 1) Reverse Rotation 7 -Vertical 7- 7 - Electric Starter, Flo-Jet 12 Volt Gear Drive, with Alternator 8- 8 - Auxiliary Drive 8 - Vertical-pull Starter Perpendicular to Crankshaft 9 - Vertical 9 -Auxiliary Drive *  Digit 6 formerly used Pulsa-Jet Parallel to for "wind-up" Starter Crankshaft on 60000, 80000 and 92000 Series EXAMPLES To identify Model 100202: 10 0 2 0 2 10 Cubic Inch Design Series 0 Horizontal Shaft- Plain Bearing Rewind Starter Similarly, a Model 92998 is described as follows: 9 2 9 9 8 9 Cubic Inch Design Series 2 Vertical Shaft- Auxiliary Drive Vertical Pull Starter Pulsa-Jet Carburetor Parallel to Crankshaft 8 1