This service repair manual covers snowmobiles from the 2010, 2011, and 2012 model years. It specifically details models such as the 2010 600 RUSH, 2011 600 RUSH, 2012 600 RUSH, 2012 600 RMK 144, 2012 600 RMK 155, and 2012 600 PRO RMK 155. These snowmobiles are equipped with a 600cc Cleanfire engine and are known for their performance and reliability in various snow conditions. The manual provides comprehensive information designed for do-it-yourself enthusiasts and professional mechanics seeking to maintain and repair these vehicles. This complete factory service repair workshop manual offers in-depth coverage of all major systems, including the engine, fuel system, drivetrain, braking, suspension, steering, chassis, bodywork, and electrical components. It features detailed maintenance procedures, troubleshooting guides, repair and rebuild instructions, essential torque specifications, and component adjustment procedures. With hundreds of pages, photos, and illustrations, this English language manual is an indispensable resource for ensuring the longevity and optimal performance of your 600 Series Snowmobile.