🏷️ Basic Information Identification Make: Yamaha Model: YFM660 Raptor 660 Model Designation: Raptor 660 Vehicle Type: ATV (All-Terrain Vehicle) Generation Generation Identifier: First Generation Raptor Codes Model Codes: YFM660 👋 Introduction Market Position Target Audience: Mechanical technicians and knowledgeable ATV owners. Value Proposition: Enables users to build and maintain a reputation of quality service by providing reliable information. Competitive Analysis Benefit To Owner: Empowers owners to perform DIY maintenance and repairs, saving money on labor and overhead. Key Features Emphasis Symbols: Utilizes WARNING, CAUTION, and NOTE to highlight critical information. Information Source: Based on information available in authorized Yamaha dealer service departments. Accuracy Statement: Endeavored to ensure accuracy of all information. Completeness: Contains all necessary instructions for any required repair. 📋 Manual Details Coverage Areas Covered Years: 2001, 2002, 2003, 2004, 2005 Page Count Total Pages: 432 Manual Type Type: Workshop Service Manual Purpose: Repair and Overhaul Language Language: English Format File Format: PDF Delivery Method: Digital Download (Email) Printability: Yes 📖 Manual Coverage Systems Covered Engine: Comprehensive coverage including disassembly, assembly, and repair of engine components. Fuel System: Detailed instructions for fuel delivery, carburetor (or fuel injection if applicable), fuel tank, and lines. Ignition System: Information on ignition timing, components (spark plug, coil, CDI unit), and troubleshooting. Lubrication System: Procedures for oil changes, oil pump, oil filter, and lubrication system maintenance. Exhaust System: Details on exhaust manifold, muffler, and related components. Electrical System: Wiring diagrams, troubleshooting for starting, charging, lighting, and other electrical components. Transmission: Complete coverage of transmission removal, disassembly, assembly, and repair. Drivetrain: Information on drive shafts, differentials (if applicable), and final drive systems. Suspension: Details on front and rear suspension systems, including shocks, springs, and linkages. Brakes: Procedures for brake system maintenance, caliper repair, fluid replacement, and bleeding. Steering: Information on steering mechanism, tie rods, and alignment. Bodywork: Procedures for removal and installation of body panels, fenders, seat, and other exterior components. Wheels And Tires: Specifications for wheel sizes, tire pressures, and mounting. Chassis: Frame inspection, repair, and related components. Procedures Included Maintenance: Routine maintenance procedures, tune-ups, and preventative servicing. Troubleshooting: Diagnostic procedures for identifying and resolving common and complex issues. Repair: Step-by-step instructions for repairing and replacing various components. Removal Installation: Detailed procedures for removing and reinstalling major assemblies and components. Overhaul: Complete overhaul procedures for engine, transmission, and other critical systems. Adjustments: Instructions for making various adjustments, such as valve clearance, carburetor settings, and brake adjustments. Technical Depth Depth: Comprehensive, suitable for professional technicians and experienced DIY mechanics. Diagnostic Support: Includes diagnostic flowcharts and troubleshooting guides. Proprietary Components: Incorporates instructions from proprietary component manufacturers for integrated understanding. Special Tools: Identifies and illustrates Yamaha special tool numbers required for specific procedures. 📊 Manual Specifications File Format Quality: PDF format, designed for clarity and readability. Print Quality Printability: High resolution, suitable for printing individual pages or the entire manual. Binding Type Binding: N/A (Digital Download) Paper Type Paper: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Type: Liquid-cooled, 5-valve, DOHC, 4-stroke Engine Displacement: 660cc Bore X Stroke: 100.0 mm x 85.0 mm Compression Ratio: 9.1:1 Performance Horsepower Estimate: Approximately 42-45 HP (stock, varies by region and specific model year). Torque Estimate: Approximately 40-43 lb-ft (stock, varies by region and specific model year). Fuel System Fuel Delivery: Mikuni BSR42 carburetor Fuel Type: Unleaded gasoline Fuel Capacity: 3.2 gallons (12 L) 🔧 Transmission Standard Transmission Type: 5-speed manual with reverse Clutch Type: Wet, multi-plate Features Gear Ratios: Detailed gear ratios are available within the manual. Drive System: Shaft drive 📐 Dimensions Exterior Length: Approx. 70.7 in (1795 mm) Width: Approx. 45.5 in (1155 mm) Height: Approx. 43.7 in (1110 mm) Weights Dry Weight: Approx. 410 lbs (186 kg) Ground Clearance: Approx. 4.4 in (112 mm) 🛡️ Safety Features Ratings Atv Safety Standards: Designed to meet industry safety standards for ATVs; manual emphasizes safe operating practices. Active Features Braking System: Hydraulic disc brakes front and rear. Passive Features Operator Protection: Manual stresses the importance of wearing appropriate safety gear (helmet, goggles, protective clothing) and observing safety precautions during operation and maintenance. 💡 Technology Features Infotainment Infotainment System: N/A (This is an ATV; technology focuses on performance and utility, not infotainment systems). Driver Assistance Driver Assistance Features: N/A (ATVs are typically not equipped with electronic driver assistance systems in the automotive sense). Connectivity Connectivity Features: N/A (No electronic connectivity features are standard on this model). 🔧 Maintenance Service Intervals Oil Change Interval: Refer to manual for specific intervals, typically every 1000-1500 miles or annually, with frequent checks. Air Filter Cleaning: Recommended at regular intervals, more frequently in dusty conditions. Spark Plug Replacement: Refer to manual for recommended replacement interval, typically based on mileage or hours. Fluid Specifications Engine Oil Type: Yamaha recommends Yamalube or equivalent API SG or higher, SAE 10W-40 or 20W-50 (depending on operating temperature). Coolant Type:...