This comprehensive service manual provides detailed instructions and repair procedures for a wide range of Polaris snowmobiles manufactured between 2007 and 2008. It covers models including the 600 HO IQ, 600 HO Switchback, 600 HO RMK, 600 HO IQ CFI, 600 HO Switchback CFI, 600 HO IQ LX CFI, 600 HO IQ Touring CFI, 700 HO IQ Dragon, 700 HO RMK Dragon, IQ Shift, 600 RMK 144, 600 RMK Shift 155, 600 Dragon IQ, 600 Switchback, 600 Dragon Switchback, 600 IQ LX, 600 IQ Touring, 600 RMK 155, 700 IQ, 700 Dragon IQ, 700 Switchback, 700 Dragon Switchback, 700 RMK 155, 700 Dragon RMK 155, 700 Dragon RMK 163, and 800 Dragon RMK 155 and 163. The manual is organized into sections covering essential aspects of snowmobile maintenance and repair. Section 1 provides general information, specifications, and recommendations for gasoline, oil, and break-in procedures. It also includes guidelines for high altitude operation, drive chain lubrication, low oil pressure warnings, storage preparation, and post-storage procedures. This section also includes a detailed after break-in checkup checklist. Section 2 delves into troubleshooting procedures for engine systems, encompassing both carbureted and EFI models. Section 3 focuses on engine-related items, including the water pump, pressure testing, spark plug removal and installation, compression checks, valve servicing, oil filter and oil changes, oil pressure testing, liquid cooling systems, recoil starters, air silencers, turbochargers and intercoolers (where applicable), power valve systems (APV), and exhaust controlled timing (ECT) systems. Section 4 explores fuel systems, providing comprehensive information on carbureted and EFI systems, as well as related components. Section 5 covers electrical systems, including the ignition system, throttle position sensor, main wiring harness testing, voltage regulator testing, low-oil light sensor testing, coolant temperature warning light testing, fuel gauge sender testing, electric fuel pump testing, ignition component testing, emergency stop switch fuse, ignition switch, starter motor, magneto, electric start troubleshooting, ignition timing, brake light switch, headlight dimmer switch, speedometer sensor testing, accessory testing, and servomotor troubleshooting. Section 6 addresses the drive train, track, and brake systems. This section includes detailed instructions on drive chain and sprockets, drive chain, track, and driveshaft, brake systems, drive belts, drive clutches, drive clutch and driven pulley, drive train and brake disc, drive sprockets, track tension, track alignment, hydraulic brake system, brake lever and master cylinder assembly, track troubleshooting, hydraulic brake system troubleshooting, and drive clutch/driven pulley troubleshooting. Section 7 focuses on the rear suspension, explaining suspension fundamentals, setup basics, chassis and skid frame mounting locations, rear suspension servicing, ACT shock servicing, rebuilding and recharging air shocks, and pressurizing rebuildable shocks. Section 8 covers steering and body components, including the steering post, ski wear bars, tie rods, steering links, spindles, steering tie rods, ski alignment, front suspension arms, front suspension shock absorbers, sway bars, front suspension mounting brackets, consoles, front bumpers, belly pan assembly, gas tanks, seat assembly, seat cushions, taillights, brake light assembly, windshields, backrests, rack assembly, tunnels, chassis, rear bumpers, snow flaps, headlight assembly, and headlight aim adjustment.

The Polaris IQ series of snowmobiles, launched in 2007, marked a significant departure from previous models, featuring a revolutionary lightweight chassis design and enhanced performance. The IQ platform provided a foundation for various models tailored to specific riding styles, including the 600 HO IQ, 600 HO Switchback, and 600 HO RMK (mountain-specific). These models were further differentiated by the introduction of the CFI (Clean Fire Injection) technology, which offered improved fuel efficiency and reduced emissions. In addition, the 700 HO IQ Dragon, specifically built for deep snow riding, joined the lineup, along with the 800 Dragon RMK, a powerful mountain machine. The Polaris IQ series appealed to both recreational and professional riders, delivering an agile and responsive ride. The 2007-2008 model years saw the continuation of these popular models alongside new additions like the IQ Shift and the 600 Dragon Switchback. These additions further expanded the IQ platform, offering a wider range of options for riders seeking specific performance and versatility. This service manual, designed for the 2007-2008 Polaris IQ models, provides essential technical information crucial for maintaining and repairing these snowmobiles. From engine components and fuel systems to electrical systems, rear suspension, and steering, it covers all aspects of the snowmobile's mechanics in detail. Whether you're a seasoned mechanic or a dedicated DIY enthusiast, this manual serves as a comprehensive guide to ensure your Polaris IQ is in top shape for any snow-covered adventure.