The 2008 Polaris Dragon RMK 163 is a high-performance snowmobile engineered for challenging mountain and backcountry terrain. Built on the robust RMK platform, this model features a lightweight chassis, a powerful liquid-cooled 2-stroke 698cc Liberty engine, and a 163-inch track designed for superior flotation and climbing ability. Its rider-forward ergonomics and specialized components, including the P-85 primary and P-90 secondary clutches, contribute to its reputation as a capable and reliable machine for demanding off-trail adventures. This comprehensive workshop repair service manual provides detailed information essential for the maintenance, troubleshooting, and repair of your 2008 Polaris Dragon RMK 163. It covers all major systems, including engine mechanicals, fuel, ignition, cooling, exhaust, drive, and electrical systems, as well as front and rear suspension, and brakes. The manual includes step-by-step procedures for routine maintenance, engine rebuilds, clutch calibration, and electrical diagnostics, offering in-depth technical guidance for owners and technicians alike. 🏷️ Basic Information Identification Make: Polaris Model: Dragon RMK 163 Year: 2008 Vehicle Type: Snowmobile Codes Engine Code: Likely a designation specific to Polaris for the 700cc engine, e.g., Liberty 700 Chassis Code: RMK platform 👋 Introduction Market Position Segment: High-performance mountain/backcountry snowmobile. Key Selling Points: Lightweight chassis, powerful 2-stroke engine, long track for flotation and climbing ability, rider-forward ergonomics. Competitive Analysis Competitors 2008: Ski-Doo Summit, Arctic Cat M-Series, Yamaha Nytro. Key Features Distinctive Features: Liberty 700 engine, RMK chassis, 163-inch track length for exceptional deep snow performance. 📋 Manual Details Coverage Areas Primary Coverage: Service, Maintenance, Troubleshooting, Repair Page Count Estimated Page Count: Likely 400-600 pages (typical for comprehensive service manuals) Manual Type Manual Type: Workshop Repair Service Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Engine Mechanical: Engine disassembly, assembly, inspection, repair of all internal components (pistons, rings, crankshaft, connecting rods, valves, camshafts), cylinder head, cylinder block. Fuel System: Carburetor (likely Mikuni VM series) tuning, cleaning, rebuilding; fuel pump, fuel lines, fuel filter replacement. Ignition System: CDI unit, ignition coils, spark plugs, wiring, troubleshooting ignition timing issues. Cooling System: Radiator, cooling fan, coolant hoses, thermostat, coolant specifications, bleeding procedures. Exhaust System: Exhaust pipes, muffler, mounting hardware, gasket replacement. Drive System: Drive clutch (primary), driven clutch (secondary), drive belt inspection and replacement, gearcase lubrication, chaincase inspection and service, driveshaft, sprockets. Suspension Front: IFS (Independent Front Suspension) components, A-arms, ball joints, tie rods, shock absorbers, springs, steering components, alignment specifications. Suspension Rear: RMK rear suspension system, rails, shocks (front and rear), springs, bogey wheels, track tension adjustment, lubrication, geometry. Brakes: Hydraulic brake system, brake caliper overhaul, brake pads replacement, brake fluid specifications and bleeding, brake disc inspection. Electrical System: Wiring diagrams, battery maintenance, stator, rectifier/regulator, lighting (headlights, taillights, brake lights), gauge cluster, starter system, kill switch functionality. Bodywork Chassis: Tunnel repair, plastic body panel removal and installation, seat, handlebars, controls, skid plate, bumper. Procedures Included Routine Maintenance: Pre-ride inspection checklists, oil changes, filter replacements, lubrication points, track inspection, clutch maintenance. Troubleshooting Guides: Diagnostic procedures for common problems (e.g., starting issues, poor performance, overheating), symptom-based troubleshooting charts. Engine Rebuild: Complete step-by-step instructions for engine disassembly, cleaning, inspection, measurement, and reassembly. Clutch Calibration: Adjusting primary and driven clutches for optimal performance, belt alignment. Suspension Tuning: Adjusting suspension settings for different riding conditions, shock servicing. Electrical Diagnostics: Using wiring diagrams to diagnose electrical faults, testing components. Technical Depth Depth Level: Comprehensive: Covers everything from basic fluid checks and belt replacement to complete engine teardown and rebuild, suspension component replacement, and electrical system diagnostics. 📊 Manual Specifications File Format File Type: PDF Searchability: Likely text-searchable if digitally generated or well-scanned. Print Quality Print Readability: High-resolution images and clear text for easy reading and printing. Binding Type Binding: N/A (Digital Download) Paper Type Paper Quality: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Type: Liquid-cooled, 2-stroke, twin-cylinder Displacement: 698 cc Bore X Stroke: Typically around 80 mm x 68 mm (exact specs in manual) Power Output: Approximately 115-120 HP (exact dyno figures vary) Torque Output: Likely in the 70-75 lb-ft range (exact figures in manual) Fuel System Fuel Delivery: Carbureted (likely dual Mikuni VM series, e.g., VM40) Fuel Type: 87-91 octane unleaded gasoline (check manual for exact octane recommendation) Lubrication Oil System: Autolube oil injection system. Recommended Oil: Polaris 2-stroke synthetic oil or equivalent (specific part number in manual). 🔧 Transmission Standard Transmission Type: CVT (Continuously Variable Transmission) with Polaris P-85 Primary and P-90 Secondary clutches. Optional Gear Ratios: Variable via CVT; manual specifies weights and spring adjustments for optimal engagement and peak RPM. Features Drive System: Chaincase with helical cut gears, sealed for durability. Gearcase Fluid: Polaris AGL Synthetic Gearcase Lube or equivalent (specific SAE viscosity and capacity in manual). Drive Belt Part Number: Typically Polaris belt numbers like 3211084 or similar (exact number in manual). 📐 Dimensions Exterior Track Length: 163 inches Track Width: Likely 15 inches Track Lug Height:...