This workshop service manual provides comprehensive guidance for the Can-Am Rotax v-810 Engine, manufactured by BRP. Designed for the 2005-2009 model years, this internal combustion engine is engineered for demanding applications. The manual details repair and overhaul procedures, ensuring the continued performance and reliability of your engine. It is intended for mechanical technicians familiar with BRP products and general automotive practices, offering in-depth information to support expert maintenance. The scope of this manual covers all necessary instructions for any repair, including engine and transmission disassembly and reassembly. It details routine maintenance and servicing, diagnostic procedures, and specific repair processes. Key topics include tune-ups, removal and installation, fuel and lubrication systems, ignition, exhaust, and the electrical system. Emphasis is placed on safety through the use of WARNING, CAUTION, and NOTE symbols, and the manual specifies recommended tools, including any special tools identified by their Can-Am Rotax v-810 Engine part numbers.