Craftsman 917.370926 Owner's Manual page 47

BRIGGS & STRATTON 4-CYCLE ENGINE
Engine Power Rating Information
The gross power rating for individual gas engine models is labeled in accordance with SAE (So-
ciety of Automo-tive Engineers) code J11940 (Small Engine Power & Torque Rating Procedure),
and rating performance has been obtained and corrected in accordance with SAE J1995 (Revision
2002-5). Actual gross engine power will be lower and is affected by, among other things, ambi-
ent operating conditions and engine-to-engine variability. Given both the wide array of products
on which engines are placed and the variety of environmental issues applicable to operating the
equipment, the gas engine will not develop the rated gross power when used in a given piece of
power equipment (actual "on-site" or net horsepower). This difference is due to a variety of factors
including, but not limited to, accessories (air cleaner, exhaust, charging, cooling, carburetor, fuel
pump, etc.), application limitations, ambient operating conditions (temperature, humidity, altitude),
and engine-to-engine variability. Due to manufacturing and capacity limitations, Briggs & Stratton
may substitute an engine of higher rated power for this Series engine.
121
134
104
137
127
358
12
3
20
7
163
524
9
585
1095
7
47
MODEL NUMBER 128M02-1612-F4
163
617
633
276
633A
617
842
883
9
883