The Mongoose KXR 50/90 is an All-Terrain Vehicle designed for versatile use, known for its engineering quality and reliability. This model, from a reputable brand, offers a balance of performance and user-friendliness, making it suitable for a range of recreational activities. Its design emphasizes durability and ease of operation, reflecting a commitment to providing accessible and dependable ATVs for riders. This comprehensive Workshop Repair Service Manual provides detailed guidance for maintaining and repairing your Mongoose KXR 50/90 ATV. It covers essential areas including engine, drivetrain, fuel, lubrication, brakes, chassis, steering, and electrical systems. The manual includes step-by-step repair instructions, preventative maintenance schedules, troubleshooting guides, and technical specifications, empowering professional technicians, mechanics, and DIY enthusiasts to keep their vehicle in optimal condition. 🏷️ Basic Information Identification Make: KYMCO Model: Mongoose KXR 50/90 Vehicle Type: ATV (All-Terrain Vehicle) Product Name: KYMCO Mongoose KXR 50 90 ATV Workshop Repair Service Manual PDF Download 👋 Introduction Market Position Target Market: Owners and technicians servicing the KYMCO Mongoose KXR 50 and 90 ATVs. Competitive Analysis Value Proposition: Provides factory-level repair and maintenance information for DIY or professional use, saving costs compared to dealership service. Key Features Comprehensiveness: Covers all major systems from engine to electrical and chassis. Instruction Clarity: Illustrated with clear, step-by-step instructions. Troubleshooting Capability: Includes dedicated troubleshooting sections for immediate problem-solving. Authenticity: Original KYMCO manual used by professional technicians. 📋 Manual Details Coverage Manual Type: Workshop Repair Service Manual Language: English Intended Audience: Professional Technicians, Mechanics, DIY Enthusiasts Searchable Text: Likely (common for PDF manuals) Printable: Yes (no restrictions noted) Zoomable Illustrations: Yes Page Count: Not explicitly stated, but implied to be comprehensive. File size can be up to 5GB. Format File Format: PDF (Portable Document Format) Delivery Method: Instant Digital Download File Compression: May be zipped (requires WinZip/WinRAR) 📖 Manual Coverage Systems Covered Engine: Engine Removal, Cylinder Head/Valves, Engine Cylinder/Piston, Crankcase/Crankshaft/Balance Shaft, Cooling System Drivetrain: Drive and Driven Pulleys, Final Reduction/Transmission System Fuel System: Fuel System Lubrication: Lubrication System Brakes: Brake System Chassis Steering: Chassis, Front Wheel/Front Suspension/Steering System, Rear Wheel/Axle/Suspension Electrical: Battery/Charging System, Electrical Equipment, Generator, Ignition System, Starting System Bodywork Cosmetics: Frame Covers/Exhaust Muffler Lighting Instruments: Bulbs Removal/Instrument/Horn Procedures Included Maintenance: Inspection/Adjustment, Preventative Maintenance, Routine Servicing Repair: Detailed Step-by-Step Repair Instructions, Component Repair, Full Rebuild Procedures Troubleshooting: Troubleshooting Guides, Problem Diagnosis, Immediate Fixes Restoration: Restoration Guidance Technical Depth Depth: Comprehensive (Repair, Service, Restore, Maintain, Rebuild, Diagnose) Diagnostic Level: Advanced Diagnostics, Troubleshooting Component Breakdowns: Detailed Engine Component Breakdowns, Exploded Views, Detailed Component Explosions Part Information: Detailed Part Numbers for All Aspects 📊 Manual Specifications File Format Digital Format: PDF File Size: Variable, up to 5GB Compatibility: Windows, Linux, Mac, iPad, Computer Print Quality Printability: High Quality, Printable from any computer/printer Binding Type Binding: Not Applicable (Digital Download) Paper Type Paper: Not Applicable (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Type 50Cc: Likely a single-cylinder, 2-stroke or 4-stroke air-cooled engine (typical for 50cc ATVs). Specific details would be in the manual. Engine Type 90Cc: Likely a single-cylinder, 2-stroke or 4-stroke air-cooled engine (typical for 90cc ATVs). Specific details would be in the manual. Performance Bore Stroke: Specific values not provided in the product description, but would be detailed in the manual. Horsepower Torque: Specific values not provided in the product description, but would be detailed in the manual. Fuel System Fuel Delivery: Likely Carbureted (common for this engine size and type). Manual will confirm details. Fuel Type: Unleaded gasoline. Manual will specify octane rating. Cooling System Cooling Method: Air-cooled (typical for these models). Manual will confirm. Ignition System Ignition Type: CDI (Capacitor Discharge Ignition) likely. Manual will provide specifics. 🔧 Transmission Standard Transmission Type: Automatic CVT (Continuously Variable Transmission) with torque converter is standard for this class of ATV. Manual will detail operation and maintenance. Features Drive System: Likely Chain Drive to Rear Axle. Manual will confirm. Gear Reduction: Final Reduction/Transmission System coverage implies details on reduction gearing. 📐 Dimensions Exterior Length Width Height: Specific dimensions not provided in the product description, but can be found in the manual or official KYMCO specifications. Weights Dry Weight: Specific weight not provided, but manual will likely list it. Payload Capacity: Not specified, but typical for youth/entry-level ATVs. 🛡️ Safety Features Active Features Braking System: Front and Rear Brakes (likely drum or disc). Manual covers Brake System in detail. Throttle Limiter: Often present on youth ATVs to control speed. Manual may cover adjustment or inspection. Passive Features Frame Construction: Steel frame. Manual covers frame inspection and repair. Lighting: Headlights and Taillight. Manual covers bulb replacement and electrical system. 💡 Technology Features Infotainment Infotainment System: Basic instrumentation (e.g., speedometer, neutral indicator) likely. No advanced infotainment features expected on this type of ATV. Driver Assistance Driver Assistance Features: None expected. Focus is on mechanical systems. Connectivity Connectivity Options: None expected. 🔧 Maintenance Service Intervals Oil Change:...