The Mongoose 50 and KXR 50, produced between 2004 and 2014, are versatile ATVs designed for both on-road and off-road recreational use. These models, featuring a two-stroke engine for the 50cc variant and a four-stroke for the 90cc, offer a capable platform for young riders and enthusiasts. A reputable Taiwanese manufacturer is known for producing reliable and value-oriented vehicles. The Mongoose series specifically targets the youth ATV market, providing an accessible and enjoyable riding experience with robust engineering for its class. This comprehensive workshop service and repair manual is your definitive guide to the maintenance, rebuilding, refurbishment, and restoration of your Mongoose 50 / KXR 50. Covering a vast array of systems, including engine lubrication and fuel systems, drivetrain components, chassis elements, and electrical systems, this 246-page English-language manual provides dealer-level depth. It details scheduled maintenance, complete teardown and rebuild procedures, and essential troubleshooting charts for common issues. With searchable text, bookmarks, and printable pages, this manual empowers owners and technicians to perform all necessary tasks efficiently, ensuring optimal performance and longevity of the vehicle. 🏷️ Basic Information Identification Make: Kymco Model: Mongoose 50 / KXR 50 Model Variant: On-Road & Off-Road Model Years Covered: 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014 Engine Type Mongoose 50: Two-stroke Engine Type Mongoose 90: Four-stroke Codes Chassis Code 50: KXR 50 Chassis Code 90: KXR 90 👋 Introduction Market Position Target Audience: Kymco Mongoose 50/90 ATV Owners, DIY Mechanics, Service Technicians Competitive Analysis Value Proposition: Cost savings on repairs and maintenance compared to dealer service, empowering users with detailed information. Replaces expensive OEM paper manuals. Key Features Digital Benefits: Instant access, searchable text, bookmarks for efficient navigation, printable pages for workshop use. Organizational Quality: Highly detailed, best organization, covers complete teardown and rebuild. 📋 Manual Details Coverage Areas Primary Coverage: Complete Workshop Service and Repair Secondary Coverage: Maintenance, Rebuild, Refurbishment, Restoration Page Count Total Pages: 246 Manual Type Type: Factory Service Manual (FSM) / Workshop Manual Language Language: English Format Format: PDF (Downloadable) File Enhancements: Bookmarks, Searchable Text, Index 📖 Manual Coverage Systems Covered Engine Systems: Lubrication System, Fuel System (Carburetor/EFI), Engine Removal, Cylinder Head/Valves, Cylinder/Piston, Crankcase/Crankshaft, Starting System, Ignition System, Charging System (Battery/AC Generator) Drivetrain Systems: Drive and Driven Pulleys (CVT), Final Reduction/Transmission System, Drive Shaft Chassis Systems: Frame Covers, Exhaust Muffler, Front Wheel/Front Brake/Front Suspension/Steering System, Rear Wheel/Swing Arm/Hydraulic Brake, Body Panels Electrical Systems: Battery, Charging System, A.C. Generator, Ignition System, Starting System, Bulbs Removal, Instrument Cluster, Horn Procedures Included Maintenance: Scheduled Maintenance, Lubrication, Fluid Changes, Adjustments (Valve Clearance, Carburetor Idle, Throttle Cable) Repair Rebuild: Complete Tear Down and Rebuild, Engine Overhaul, Transmission Overhaul, Brake System Overhaul, Suspension Repair Troubleshooting: Problem Diagnosis, Error Code Identification, Troubleshooting Charts, No Spark Issues Technical Data: Torque Specifications, Part Diagrams, Illustrations, Specifications (Bore, Stroke, Compression Ratio), Fluid Capacities, Tire Pressure (PSI) Technical Depth Depth: Comprehensive (Dealer Level) 📊 Manual Specifications File Format Format: PDF Requirements: Adobe PDF Reader Print Quality Printability: Printable without restriction Binding Type Binding: Digital (Downloadable - No Physical Binding) Paper Type Paper Type: Not Applicable (Digital Format) Delivery Delivery Method: Instant Download Link (Post-Payment) ⚙️ Engine Specifications Primary Engine Mongoose 50 Engine Description: Single-cylinder, two-stroke, air-cooled engine Mongoose 90 Engine Description: Single-cylinder, four-stroke, air-cooled engine Performance Hp And Torque Data: Specifications available within the manual for both engine variants. Fuel System Fuel Delivery Mongoose 50: Carburetor (specific model and jetting details provided) Fuel Delivery Mongoose 90: EFI (Electronic Fuel Injection) system (specific components and tuning details provided) Fuel Type: Unleaded gasoline (specific octane rating recommendations in manual) 🔧 Transmission Standard Transmission Type: Automatic Continuously Variable Transmission (CVT) with Forward/Neutral/Reverse Optional Optional Transmissions: Not applicable, standard CVT system. Features Cv System Components: Drive Pulley, Driven Pulley, Drive Belt, Reduction Gear Transmission Fluid: Specific Kymco recommended gear oil or equivalent for final drive, CVT fluid type in manual. 📐 Dimensions Exterior Dimensions General: Specific overall length, width, and height for Mongoose 50 and 90 models detailed in manual. Weights Dry Weight Approx 50: Approximately 90-100 kg (varies by exact configuration, consult manual for precise spec) Dry Weight Approx 90: Approximately 100-110 kg (varies by exact configuration, consult manual for precise spec) Payload Capacity: Refer to manual for specific rider and cargo weight limitations. 🛡️ Safety Features Ratings Safety Certification: Off-road and potential on-road compliance depends on local regulations; manual provides technical data for maintenance and repair. Active Features Braking System: Hydraulic Disc Brakes (Front and Rear), potentially with integrated braking systems. Manual details operation and maintenance. Passive Features Lighting System: Headlights, Taillights, Brake Lights, Turn Signals (model dependent). Manual covers bulb removal and troubleshooting. Horn: Standard horn included. Manual covers horn system inspection and repair. 💡 Technology Features Infotainment Infotainment Features: Basic instrument cluster including speedometer, odometer, neutral indicator, and possibly oil/engine warning lights. Manual covers their function and...