[. . . ] IMPORTANT SAFETY INFORMATION AND In the USA and Canada, INSTRUCTIONS FOR our 24 hour hotline is: ENGINE SELECTION 18002333723 ENGINE INSTALLATION Briggs & Stratton Corporation Milwaukee, Wisconsin 53201 ENGINE OPERATION www. briggsandstratton. com Keep these instructions for future reference. Before installing and operating this engine read and observe all warnings, cautions and instructions on both sides of this sheet, on the engine, and in the operating & maintenance instructions. NOTE: This sheet of instructions and safety information is not meant to cover all possible conditions and situations that may occur. [. . . ] Note: For all Go -karts use only a model 136200 series engine, which offers improved safety and performance. Replacement engines should be the same model as the original engine, or be the Briggs & Stratton designated replacement engine. Refer to the Operation & Maintenance Instructions for engine identification information. Note: For all Go -karts use only a model 136200 series engine, which offers improved safety and performance. Do not use Briggs & Stratton engines on 3 -wheel All -Terrain Vehicles (ATVs), motor bikes, air craft products, or vehicles intended for use in competitive events. Briggs & Stratton does not approve of or authorize such uses. [9] WARNING [10] WARNING · [11] WARNING · ENGINE INSTALLATION [1] [2] [3] Do not attempt to install this engine if you do not have the appropriate tools and knowledge of small engine installation procedures. Do not modify the engine in any way without Briggs & Stratton factory approval. If the exhaust system on the old engine was supplied by the equipment manufacturer, you must transfer the exhaust system and related components (original muffler and related pipes, brackets, clamps, and shields) to the new engine. [. . . ] Do not tamper with governor springs, or other parts that will increase engine speed above specification. [. . . ]