The 2004 650 V-Twin 4x4 FIS represents a significant entry in the performance-oriented All-Terrain Vehicle (ATV) market, designed for both utility and recreational pursuits. This model is distinguished by its powerful liquid-cooled, 4-stroke, SOHC V-twin engine, boasting a displacement of 641.5 cc and featuring electronic fuel injection (EFI) for enhanced throttle response and efficiency. Its robust engineering is further highlighted by a selectable 4x4 drivetrain with a front differential lock and independent front and rear suspension, contributing to superior handling and ride comfort. The 650 V-Twin was a key model in establishing a presence in a competitive segment, often praised for its strong engine performance and comfortable ride. This comprehensive Factory Full Parts Manual in English provides essential information for maintaining the longevity and performance of your 2004 650 V-Twin 4x4 FIS. It covers detailed procedures for the complete disassembly and reassembly of all major mechanical systems, including the engine, fuel and intake, cooling, ignition and electrical, drivetrain, transmission, clutch, braking, suspension, steering, frame, and body components. The manual is rich with high-quality, detailed illustrations and exploded views, facilitating clear part identification and sourcing of genuine parts. With expert-level detail and comprehensive parts lists, this manual serves as an indispensable resource for owners, mechanics, and technicians undertaking maintenance, repairs, or restoration. 🏷️ Basic Information Identification Make: Arctic Cat Model: 650 V-Twin 4x4 FIS Year: 2004 Model Code: A2004ISR4BNAS Chassis Code: ISR4BNAS Trim Level: FIS (Fuel Injection System), GREEN MRP (Mid-Range Package) Variant: 4x4 Generation Generation Identifier: First Generation Arctic Cat 650 V-Twin 👋 Introduction Market Position Atv Segment: Performance-oriented All-Terrain Vehicle (ATV) for utility and recreation. Target Audience: Enthusiasts and owners requiring detailed parts information for maintenance, repair, or restoration. Competitive Analysis Key Competitors: Polaris Sportsman, Can-Am Outlander, Yamaha Grizzly, Suzuki King Quad. Key Features Engine Configuration: Powerful V-twin engine, a distinguishing feature for its class at the time. Drivetrain Technology: Selectable 4x4 with front differential lock (FIS - Front Impact System implies advanced 4WD engagement). Fuel System: Fuel Injection (FIS) for improved throttle response, fuel efficiency, and cold-weather starting. Suspension: Independent Front and Rear Suspension (IRS) for enhanced ride comfort and handling. Manual Value Proposition: Provides essential OEM part identification for maintaining the longevity and performance of the 2004 Arctic Cat 650 V-Twin 4x4 FIS. 📋 Manual Details Coverage Areas Manual Type: Factory Full Parts Manual Language: English Format: PDF Download Digital Features: Instant Download, Printable, Zoomable, Searchable Text System Requirements: Adobe Reader, Foxit Reader, or any other PDF reader 📖 Manual Coverage Systems Covered Engine Assembly: Complete engine disassembly and assembly, including crankshaft, piston, cylinder, cylinder head, camshaft, valve train, and cam chain. Fuel And Intake: Air intake system, throttle body, and fuel injection system components. Cooling System: Radiator, fan, hoses, and water pump assembly. Ignition And Electrical: Magneto, starter motor, battery, starter clutch, and wiring harness. Drive Train: Front drive gearcase, rear drive components, and related parts. Transmission: Transmission unit, secondary drive, secondary transmission, and gear shifting mechanisms. Clutch System: Primary clutch, secondary clutch, and V-belt. Braking System: Front brake system, rear brake system, and parking brake. Suspension Steering: Front suspension, rear suspension, steering system, and sway bar. Frame And Body: Frame structure, canopy, taillight, cargo box, tailgate, dash, hood, headlight, console, floor panel, and tilt frame. Fuel System: Gas tank and related fuel lines. Wheels Tires: Wheel and tire assembly components. Procedures Included Overhaul: Detailed overhaul procedures for major mechanical systems. Disassembly Assembly: Comprehensive step-by-step instructions for disassembly and reassembly of all listed components. Part Identification: Identification and sourcing of all genuine Arctic Cat parts with detailed illustrations and exploded views. Component Replacement: Guidance on replacement procedures for worn or damaged parts. Maintenance Tasks: Implied information for maintenance tasks through detailed part breakdowns. Technical Depth Depth Level: Expert-level detail for parts identification and sourcing. Focuses on OEM part numbers and assemblies for mechanical repairs and rebuilds. Illustrations: High-quality, detailed illustrations and exploded views for clear part identification and assembly sequence. Parts Listing: Comprehensive parts lists associated with each illustration, enabling precise ordering of components. 📊 Manual Specifications File Format File Type: PDF Digital Searchability: True (Searchable Text) Print Quality Printability: True (Printable) Zoom Capability: True (Zoomable) Binding Type Binding: N/A (Digital Download) Paper Type Paper Quality: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Type: Liquid-cooled, 4-stroke, SOHC, V-twin Displacement: 641.5 cc Bore X Stroke: Approximately 70 mm x 82.6 mm (Exact specifications would be in the manual, but this is typical for the V-twin of this era). Compression Ratio: Estimated 9.2:1 to 9.5:1 (Refer to manual for exact) Performance Horsepower: Estimated 45-50 HP (Approximate, varies by source and dyno testing) Torque: Estimated 38-42 ft-lbs (Approximate) Fuel System Fuel Delivery: Electronic Fuel Injection (EFI) - Specific system details would be in the manual. Fuel Type: Unleaded gasoline, minimum 87 octane Lubrication Oil Type: API SG...