🏷️ Basic Information Identification Make: KYMCO Model: Mongoose / KXR 90 50 Model Variant: Mongoose 90, KXR 90, Mongoose 50, KXR 50 Codes Chassis Code Prefix: KYMCO chassis codes typically begin with 'KY' Engine Code Prefix: Engine codes vary by specific model year and engine displacement, often indicated by a prefix followed by displacement and other identifiers. 👋 Introduction Market Position Segment: Youth ATV / Entry-Level ATV Target Demographic: Young riders, beginner ATV enthusiasts, recreational users Competitive Analysis Competitors: Competes with similar sized ATVs from brands like Polaris (Outlaw 50/90), Honda (TRX90), Suzuki (LT-Z50/90), Yamaha (Raptor 50/90), Arctic Cat (Alterra 50/90). Key Features Features: Compact size, beginner-friendly handling, automatic transmission, robust build for recreational use, safety features like speed limiter capabilities. Value Proposition For Owners: Provides essential knowledge for maintaining and repairing these ATVs, reducing reliance on expensive professional services and extending vehicle lifespan. For Technicians: Offers official factory data, ensuring accuracy and completeness for professional diagnostic and repair tasks. 📋 Manual Details Coverage Areas Coverage Type: Complete Official Factory Service / Repair / Full Workshop Manual Target Audience: Professional Technicians, DIY Enthusiasts Page Count Total Pages: Estimated to be comprehensive across 18 PDF files, likely exceeding 500 pages when combined. Manual Type Type: Service Manual, Repair Manual, Workshop Manual Language Language: English Format Delivery Format: ZIP Archive containing 18 PDF Files File Format: PDF Interactivity: Keyword Searchable 📖 Manual Coverage Systems Covered Powertrain: Engine (4-stroke, air-cooled, specific displacement for 50cc and 90cc variants), Fuel System (carburetor or EFI depending on year/model), Ignition System, Exhaust System, Cooling System (air-cooled) Drivetrain: Automatic Transmission (CVT - Continuously Variable Transmission), Drive System (Chain drive or Belt drive depending on specific model and year) Chassis Suspension: Frame, Front Suspension (Telescopic Forks), Rear Suspension (Swingarm with Monoshock or Dual Shocks), Steering System Braking System: Front Brake (Drum or Disc), Rear Brake (Drum or Disc), Brake System Hydraulics Electrical System: Battery, Charging System (Stator, Regulator/Rectifier), Lighting System (Headlight, Taillight, Indicators), Starting System (Electric Start, Kick Start if applicable), Wiring Diagrams, Fuses, Relays Body And Trim: Body Panels, Seat, Handlebars, Footrests, Fenders, Plastics Procedures Included Maintenance: Routine Checks, Lubrication, Filter Replacement (Air, Oil), Spark Plug Service, Chain/Belt Adjustment and Lubrication, Brake Adjustment and Inspection, Tire Pressure Checks Troubleshooting: Diagnostic Procedures, Common Problems and Solutions, Symptom-based Troubleshooting Guides Repair Rebuild: Engine Overhaul and Reassembly, Transmission Service, Suspension Component Replacement, Brake Caliper/Master Cylinder Rebuild, Electrical Component Diagnosis and Replacement Technical Data: Torque Specifications, Clearances, Fluid Capacities, Electrical Specifications Technical Depth Depth: Comprehensive, covering from basic maintenance to full engine and component rebuilds, including detailed diagnostic procedures and specifications. 📊 Manual Specifications File Format Format: PDF Searchability: Keyword Searchable Print Quality Resolution: High-resolution PDF suitable for clear viewing and printing. Binding Type Digital Format: Digital (Delivered in ZIP archive) Paper Type Digital Medium: Electronic document ⚙️ Engine Specifications Primary Engine Engine Type: 4-stroke, air-cooled, single-cylinder Displacement 50Cc: Approximately 49.4cc (for 50cc models) Displacement 90Cc: Approximately 89.6cc (for 90cc models) Performance Horsepower Approx 50Cc: Typically in the range of 3-5 HP (varies by specific model year and tuning) Horsepower Approx 90Cc: Typically in the range of 6-8 HP (varies by specific model year and tuning) Torque Approx: Specific torque figures vary but are commensurate with small displacement engines. Fuel System Fuel Delivery: Carbureted (e.g., Keihin or similar) for most models, some later or higher-spec versions may feature EFI. Fuel Type: Unleaded Gasoline (Octane rating as per manual recommendations) Engine Oil Oil Type: Likely SAE 10W-40 or 20W-50, 4-stroke motorcycle/ATV specific oil meeting JASO MA or MA2 standards. (Refer to manual for exact specification) Oil Capacity Approx: Approximately 0.8 - 1.0 Liters (Refer to manual for exact capacity and procedure) 🔧 Transmission Standard Transmission Type: Automatic Continuously Variable Transmission (CVT) with Forward, Neutral, Reverse gears. Optional Gear Ratios: CVT ratios are variable. Manual will detail the drive and driven pulley characteristics and belt specifications. Features Drive Type: Chain Drive or Belt Drive (depending on specific model and year configuration). Fluid Specifications Transmission Fluid: Typically uses standard API SG or higher transmission oil. (Refer to manual for exact specifications and capacity) 📐 Dimensions Exterior Length Approx: Varies slightly by model but generally compact, around 1500-1600 mm. Width Approx: Varies slightly by model but generally around 900-1000 mm. Height Approx: Varies slightly by model but generally around 950-1050 mm. Weights Dry Weight Approx: Typically around 100-120 kg for the 90cc models, less for 50cc. Payload Capacity Approx: Designed for single rider, with modest rack capacity if equipped. (Refer to manual for specific load ratings). Wheelbase Approx Wheelbase: Typically around 1000-1100 mm. 🛡️ Safety Features Ratings Consumer Ratings: Often rated for specific age groups (e.g., 12+ years) based on engine size and performance. Specific safety ratings from independent bodies may be limited for this class. Active Features Speed Limiter: Many youth ATVs feature adjustable speed...