🏷️ Basic Information Identification Make: Kymco Model: Mongoose/KXR 90/50 Product Type: Workshop Service Repair Manual 👋 Introduction Market Position Value Proposition: Inexpensive way to keep vehicle working properly through self-service Competitive Analysis Manual Advantage: Highly detailed factory service manual with comprehensive illustrations and instructions Key Features Completeness Of Manual: 100% complete and intact 📋 Manual Details Coverage Areas Manual Coverage Scope: Complete factory service and repair Page Count Estimated Page Count: Hundreds of pages (exact count not specified but implied to be comprehensive) Manual Type Manual Format Type: Service Repair Manual Language Language: English Format Delivery Format: PDF Download 📖 Manual Coverage Systems Covered Engine Systems: Engine overhaul, carburetor, ignition, cooling, lubrication Transmission Drivetrain: Transmission inspection, repair, drive belt service Electrical Systems: Wiring diagrams, lighting, starting system, charging system Chassis Suspension: Front and rear suspension, steering system, wheel hub assembly Braking Systems: Brake system inspection, hydraulic components, pad replacement Body Frame: Body panel removal and installation, frame inspection Procedures Included Maintenance Procedures: Routine maintenance, oil changes, filter replacements, spark plug service Repair Procedures: Component disassembly, reassembly, part replacement Troubleshooting Diagnostics: Fault finding, diagnostic charts, common issue resolution Engine Rebuild: Complete engine disassembly and reassembly with detailed instructions Technical Depth Depth Of Information: Detailed step-by-step instructions for complete disassembly and repair Instructional Method: Includes hundreds of photos and illustrations for clarity Target Audience Intended Users: Do-it-yourself owners and experienced mechanics 📊 Manual Specifications File Format File Type: PDF Print Quality Printability: All pages printable Binding Type Binding Method: N/A (Digital PDF format) Paper Type Paper Quality: N/A (Digital PDF format) Compatibility Operating Systems: Compatible with all PC-based Windows operating systems and Mac ⚙️ Engine Specifications Primary Engine Engine Type 90: Likely 2-stroke, air-cooled, single-cylinder (typical for this class of ATV) Engine Type 50: Likely 2-stroke, air-cooled, single-cylinder (typical for this class of ATV) Performance Horsepower Estimate 90: Estimated 5-7 HP (typical for a 90cc engine of this era) Horsepower Estimate 50: Estimated 3-5 HP (typical for a 50cc engine of this era) Fuel System Fuel Delivery System: Carbureted (standard for this engine size and type) Ignition Ignition Type: CDI (Capacitor Discharge Ignition) Cooling Cooling System: Air-cooled 🔧 Transmission Standard Transmission Type: Automatic (CVT - Continuously Variable Transmission) Features Drive System: Chain Drive Transmission Fluid Spec: Specific CVT fluid type (refer to manual for exact specification and capacity) 📐 Dimensions Exterior Vehicle Type: All-Terrain Vehicle (ATV) Weights Dry Weight Estimate 90: Approx. 150-180 lbs (specific to model and year) Dry Weight Estimate 50: Approx. 130-160 lbs (specific to model and year) 🛡️ Safety Features Ratings Safety Compliance: Designed to meet relevant safety standards for youth ATVs (specific certifications not detailed in product description) Active Features Throttle Limiter: Often equipped with a throttle limiter screw for younger riders Passive Features Frame Construction: Steel tube frame for rigidity and durability Lighting: Headlights and taillight for visibility 💡 Technology Features Infotainment Infotainment Features: Basic instrumentation (speedometer, odometer, indicator lights). Driver Assistance Atv Specific Tech: Throttle limiting for safety, potentially speed governor. Connectivity Connectivity Options: N/A (ATV of this class typically lacks modern connectivity features). 🔧 Maintenance Service Intervals Oil Change Interval: Typically every 50-100 operating hours or annually, refer to manual for precise interval. Air Filter Cleaning: Regular inspection and cleaning/replacement, especially in dusty conditions. Spark Plug Replacement: Interval varies, typically every 100-200 operating hours or based on inspection. Fluid Specifications Engine Oil Type: Specific SAE viscosity grade (e.g., SAE 10W-40 or 20W-50) and API classification (refer to manual). Gear Oil Type: Specific gear oil viscosity and API classification for the final drive. Known Issues Common Wear Items: Drive belts, brake pads, suspension bushings, carburetor cleaning due to fuel variability. Preventative Maintenance Chain Lubrication: Regular cleaning and lubrication of the drive chain is crucial for longevity. 📚 Vehicle History Brand Heritage Manufacturer Origin: Kymco (Kwang Yang Motor Co., Ltd.) is a Taiwanese manufacturer of scooters, motorcycles, and ATVs. Model Evolution Product Line: Kymco Mongoose and KXR lines represent their youth and entry-level ATV offerings. Production Production Period: Models likely produced in the mid-2000s to early 2010s, with specific years covered by the manual being critical. 🏆 Awards & Recognition Recognitions Industry Recognition: Kymco is a recognized manufacturer in the powersports industry for its value and reliability in the entry-level segment.