This manual covers the 550 TRV All-Terrain Vehicle (ATV) from 2011. An American manufacturer is recognized for its robust snowmobiles and ATVs, and the 550 TRV model is designed for versatile off-road performance, often featuring capabilities for tandem riding and enhanced traction. This workshop repair service manual provides professional-level diagnostic, repair, and maintenance information, ensuring owners and technicians have access to comprehensive data for this model. The scope of this manual is extensive, encompassing all models, engines, trim, and transmission types, offering hundreds of pages of detailed guidance in English. It covers every major system, including the engine, transmission, fuel, lubrication, cooling, electrical, drive, suspension, steering, frame, controls, and braking systems. Procedures included range from general maintenance and troubleshooting to in-depth repair, disassembly, assembly, and cleaning, complete with detailed wiring diagrams and torque specifications. This resource is designed to empower professional technicians and experienced DIY mechanics to efficiently maintain and repair their 550 TRV.