This Briggs & Stratton Engine Twin Cylinder L Head Repair Manual with part number 271172-4/99 is a must-have for anyone looking to do repairs on their engine. With detailed information on how to repair and maintain your engine, this manual will ensure that your engine is running smoothly and efficiently. The manual covers all aspects of the engine, including the brand, country/region of manufacture, and whether it has been modified or not. Whether you're a seasoned mechanic or a beginner, this manual will provide you with all the information you need to get your engine running smoothly. So, if you're looking for a comprehensive manual to help you with your engine repairs, this is the one for you.