The 2008 Polaris Dragon RMK 155 is a high-performance snowmobile engineered for aggressive riding and deep snow exploration. This model features the robust Liberty 700cc liquid-cooled twin-cylinder engine, delivering approximately 135-140 horsepower. Its design emphasizes rider control and agility in challenging backcountry terrain, incorporating Polaris' rider-forward chassis, Variable Assistant Steering (PVAS), and a specialized long-travel suspension with a 155-inch track. The Dragon RMK 155 competed in the premium mountain snowmobile segment, known for its power-to-weight ratio and advanced features.
This comprehensive factory service manual provides complete repair and diagnostic information for the 2008 Polaris Dragon RMK 155 snowmobile. It covers all essential systems, including the engine, fuel, ignition, drive, suspension, steering, electrical, body, chassis, cooling, track, and brakes. Detailed procedures for routine maintenance, troubleshooting, component removal and installation, engine rebuilds, clutch service, and electrical diagnostics are included. The manual is designed to assist owners, mechanics, and technicians in maintaining and repairing the vehicle to factory standards, offering in-depth technical data and specifications.
Market Position:
The Polaris 700 Dragon RMK 155 (2008) was positioned as a high-performance mountain snowmobile designed for aggressive riding and deep snow exploration.
Competitive Analysis:
Competed against other premium mountain snowmobiles from manufacturers like Ski-Doo (Summit series) and Arctic Cat (M-series) in the 2008 model year, emphasizing power-to-weight ratio and advanced suspension for backcountry terrain.
Key Features:
Liberty 700cc liquid-cooled twin-cylinder engine, Polaris' rider-forward chassis design for improved handling and control in technical terrain, Polaris Variable Assistant Steering (PVAS), RMK-specific long-travel suspension with deep snow track (155-inch length).
Coverage Areas:
Complete factory service and repair
Page Count:
Hundreds of pages (specific number not provided in product info, but implies comprehensive)
Manual Type:
Factory Service Manual / Repair Manual
Systems Covered:
Engine, Fuel System, Ignition System, Drive System (Clutch, Chaincase), Suspension (Front & Rear), Steering, Electrical System, Body & Chassis, Cooling System, Track System, Brakes
Procedures Included:
Routine Maintenance, Troubleshooting, Diagnostic Procedures, Component Removal & Installation, Engine Rebuild, Clutch Adjustment & Service, Suspension Alignment & Repair, Electrical System Diagnosis, Chassis Inspection & Repair, Torque Specifications, Specifications and Data
Technical Depth:
Comprehensive factory-level repair and diagnostic information suitable for professional technicians and advanced DIY enthusiasts.
File Format:
PDF (Portable Document Format)
Print Quality:
High-resolution, printable pages (implied by factory manual)
Binding Type:
N/A (Digital Download)
Paper Type:
N/A (Digital Download)
Engine Type:
700 Liberty Twin
Engine Configuration:
Liquid-cooled, 2-stroke, 2-cylinder
Displacement:
698 cc (42.6 cu in)
Horsepower Approximate:
Approximately 135-140 hp (specific output varies by tuning and conditions)
Bore X Stroke:
72.1 mm x 68 mm (2.84 in x 2.68 in)
Fuel Delivery:
MIKUNI VM40 (or similar EFI system, manual would clarify exact type)
Fuel Type Recommended:
87 Octane Unleaded Gasoline (check manual for exact spec)
Ignition Type:
CDI (Capacitor Discharge Ignition)
Cooling Method:
Liquid Cooling
Transmission Type:
CVT (Continuously Variable Transmission)
Clutch System:
Polaris P-85 Primary / Arctic (or Polaris) Roller Secondary
Drive System:
Chaincase with Hyvo chain
Gear Ratios:
Specific gear ratios for low and high range would be detailed in the manual.
Drive Chain Oil:
Specific SAE viscosity and type detailed in manual, typically a dedicated chaincase oil.
Lug Height:
2.25 inches (standard for RMK deep snow models)
Dry Weight Approximate:
Around 450-470 lbs (specific to configuration)
Fuel Capacity:
Approximately 10.2 gallons
Safety Ratings:
N/A (Snowmobiles are not typically crash-tested or rated by agencies like NHTSA; safety relies on design and rider operation).
Active Safety Features:
Hydraulic Disc Brake system, Polaris Variable Assistant Steering (PVAS) for reduced steering effort.
Passive Safety Features:
Handlebar and riser design for rider control, integrated lighting system.
Infotainment Features:
Basic dashboard instrumentation: speedometer, tachometer, odometer, trip meter, engine temp/warning lights, fuel level. No advanced infotainment systems typical of modern vehicles.
Driver Assistance Features:
Polaris Variable Assistant Steering (PVAS) is a key technological feature aiding rider control.
Connectivity Features:
N/A (No electronic connectivity features).
Initial Break In Service:
Typically around 20-50 hours or 250-500 miles, involving initial checks and adjustments. Detailed in manual.
Regular Maintenance Intervals:
Includes checking/adjusting drive belts, lubricating chassis points, inspecting suspension components, checking chaincase oil, spark plug service, etc., typically every 50-100 hours or annually. Specific intervals detailed in manual.
Engine Oil Change Interval:
2-stroke engines typically do not have oil changes in the traditional sense; they use a 2-stroke oil injection system. The manual will detail oil type and reservoir checks.
Engine Oil Type:
Dedicated Polaris 2-stroke synthetic oil or equivalent meeting specific OEM specifications (detailed in manual).
Coolant Type:
Ethylene glycol-based antifreeze, typically a 50/50 mix with distilled water. Specific type and capacity in manual.
Brake Fluid Type:
DOT 4 Hydraulic Brake Fluid (verify with manual for specific requirements).
Chaincase Oil Type:
Specific gear oil or chaincase lubricant, SAE 75W-90 or similar (confirm in manual).
Known Issues Common:
While the 700 Liberty engine is generally robust, common areas for attention across snowmobiles of this era can include drive belt wear, clutch alignment, suspension component wear (bushings, shocks), exhaust system integrity, and electrical connections due to vibration and moisture. Specific known issues and recalls for the 2008 RMK 700 would be extensively covered in the factory manual.
Brand Heritage:
Polaris Industries Inc. has a long and storied history in powersports, particularly with snowmobiles, dating back to the company's founding in 1954. Polaris is renowned for its innovation in snowmobile technology and design.
Model Evolution:
The RMK (Rocky Mountain King) line has consistently represented Polaris' commitment to mountain riding. The 700 Dragon RMK 155 built upon previous RMK iterations, incorporating advancements in chassis dynamics, engine performance, and rider ergonomics. The 'Dragon' designation often signified a premium, feature-rich package.
Production Years:
The 700 Dragon RMK was part of Polaris' lineup for several years, with the 2008 model being a significant iteration. Specific production runs and locations would be detailed in broader company history, but snowmobiles are typically manufactured in the United States.
Recognitions:
The Polaris RMK series, including models like the 700 Dragon RMK, has consistently received accolades and positive reviews from snowmobile publications for its mountain-climbing prowess, rider-forward ergonomics, and powerful engines.
