Target User:
        
        
            Owners of Kymco KXR 90/50 Mongoose ATVs seeking to perform their own maintenance and repairs, regardless of skill level
        
     
    
    
        
            Value Proposition:
        
        
            Cost savings by enabling DIY repairs, provides access to manufacturer-level technical data and procedures
        
     
    
    
        
            Content Emphasis:
        
        
            Step-by-step instructions, extensive use of pictures and diagrams
        
     
    
        
            Delivery Method:
        
        
            Instant PDF download, eliminating shipping costs and waiting times
        
     
 
    
    
    
        
            Primary Coverage:
        
        
            Complete workshop service and repair
        
     
    
        
            Secondary Coverage:
        
        
            Inspection, adjustment, lubrication, engine removal, component overhaul, electrical systems, chassis components
        
     
    
    
        
            Estimated Page Count:
        
        
            High (specific number not provided, but described as 'COMPLETE' and 'Tons of pictures and diagrams')
        
     
    
    
        
            Type:
        
        
            Workshop Service/Repair Manual
        
     
    
    
    
    
    
        
            Compatibility:
        
        
            Windows, macOS
        
     
 
    
    
    
        
            Engine Internal:
        
        
            Cylinder head, valves, cylinder, piston, crankcase, crankshaft, drive pulleys, final reduction, transmission system
        
     
    
        
            Fuel And Exhaust:
        
        
            Fuel system, exhaust mufflers
        
     
    
        
            Chassis And Suspension:
        
        
            Frame covers, front wheel, front brake, front suspension, steering system, rear wheel, swing arm
        
     
    
        
            Electrical And Ignition:
        
        
            Battery, charging system, A.C. generator, ignition system, starting system, bulbs, instruments, horn
        
     
    
    
        
            Maintenance:
        
        
            Inspection, adjustment, lubrication
        
     
    
        
            Repair And Overhaul:
        
        
            Engine removal, component overhaul (cylinder head, valves, piston, crankcase, etc.), transmission repair, brake system overhaul, electrical system diagnostics and repair
        
     
    
        
            Troubleshooting:
        
        
            Implied through diagnostic information for electrical and mechanical systems
        
     
    
    
        
            Depth:
        
        
            Comprehensive (covers 'every part of the ATV, in and out'), suitable for detailed repair and rebuilding
        
     
 
    
    
    
        
            Type:
        
        
            Portable Document Format (PDF)
        
     
    
        
            Searchability:
        
        
            Likely text-searchable (common for professionally created PDFs)
        
     
    
    
        
            Printability:
        
        
            Fully printable, allowing users to print specific sections or the entire manual
        
     
    
    
        
            Format For Use:
        
        
            Digital (downloadable); user can print and bind as needed
        
     
    
    
        
            Usage Environment:
        
        
            Designed for use in home, office, or repair shop environments
        
     
 
    
    
    
        
            Type:
        
        
            Air-cooled, 4-stroke (typical for this class and model, though specific designation not given)
        
     
    
        
            Displacement 90Cc:
        
        
            Approximately 87-90cc (typical for 90cc class)
        
     
    
        
            Displacement 50Cc:
        
        
            Approximately 49-50cc (typical for 50cc class)
        
     
    
        
            Cooling System:
        
        
            Forced Air Cooling
        
     
    
    
        
            Horsepower Range:
        
        
            Typically 5-9 HP depending on specific 50cc or 90cc configuration
        
     
    
        
            Torque Range:
        
        
            Estimated 4-7 lb-ft (specific data not provided)
        
     
    
    
        
            Carburetor Type:
        
        
            Likely a constant velocity (CV) carburetor or a simpler slide carburetor
        
     
    
        
            Fuel Type:
        
        
            Unleaded Gasoline
        
     
    
    
        
            Procedure Coverage:
        
        
            Detailed instructions for engine removal and reinstallation
        
     
 
    
    
    
        
            Type:
        
        
            Automatic CVT (Continuously Variable Transmission) with Chain Drive Final Reduction
        
     
    
        
            Drive Pulleys:
        
        
            Primary and Secondary drive pulleys covered for inspection, adjustment, and replacement
        
     
    
    
        
            Gear Selection:
        
        
            Forward, Neutral, Reverse (typical for this class, confirmed by manual sections)
        
     
 
    
    
    
        
            Length:
        
        
            Specific dimensions not provided, but typical for a youth/entry-level ATV (approx. 50-60 inches)
        
     
    
        
            Width:
        
        
            Specific dimensions not provided, but typical for a youth/entry-level ATV (approx. 30-35 inches)
        
     
    
        
            Height:
        
        
            Specific dimensions not provided, but typical for a youth/entry-level ATV (approx. 35-40 inches)
        
     
    
    
        
            Dry Weight:
        
        
            Specific weight not provided, but typically around 150-200 lbs for this class
        
     
    
        
            Ground Clearance:
        
        
            Specific clearance not provided, but typically around 4-6 inches
        
     
 
    
    
    
        
            Braking System:
        
        
            Hydraulic front and rear brakes (drums or discs depending on specific configuration, manual covers hydraulic brake system)
        
     
    
        
            Steering System:
        
        
            Handlebar steering with tie rods and steering knuckles
        
     
    
    
        
            Lighting:
        
        
            Headlight, taillight/brake light, indicator bulbs (covered in manual)
        
     
    
        
            Throttle Limiter:
        
        
            Often present on youth ATVs, manual may cover its adjustment if applicable
        
     
 
    
    
    
        
            Instrumentation:
        
        
            Basic instrument cluster including speedometer (if equipped), odometer, neutral indicator, and potentially other warning lights (e.g., oil, high beam). Covered in manual.
        
     
    
    
        
            Features:
        
        
            Primarily mechanical systems. Safety features are mechanical (brakes, steering) and basic electrical (lights).
        
     
 
    
    
    
        
            Oil Change:
        
        
            Typically every 1000-2000 km or annually; specific interval detailed in manual.
        
     
    
        
            Air Filter Cleaning:
        
        
            Regular inspection and cleaning recommended, typically every few hundred km or as needed based on operating conditions.
        
     
    
        
            Spark Plug Replacement:
        
        
            Typically recommended every 6-12 months or a set mileage/hour interval; specific part number and interval in manual.
        
     
    
    
        
            Engine Oil:
        
        
            Likely SAE 10W-40 or 20W-50 API SG or higher; specific grade and capacity detailed in manual.
        
     
    
        
            Brake Fluid:
        
        
            DOT 3 or DOT 4 hydraulic brake fluid; specific type confirmed in manual.
        
     
    
        
            Gear Oil:
        
        
            If applicable for specific gearbox lubrication, manual will specify grade and quantity.
        
     
    
    
        
            Common Wear Items:
        
        
            Drive belts, brake pads/shoes, tires, and suspension bushings are common wear items for ATVs of this type.
        
     
    
        
            Carburetor Cleaning:
        
        
            Periodic cleaning may be required due to fuel quality or debris ingress; manual provides disassembly and cleaning instructions.
        
     
 
    
    
    
        
            Manufacturer:
        
        
            Kymco (Kwang Yang Motor Co., Ltd.) is a Taiwanese manufacturer known for scooters, motorcycles, and ATVs.
        
     
    
    
        
            Model Line:
        
        
            The Mongoose line represents Kymco's offering in the youth and entry-level ATV segment. The KXR 90/50 are specific iterations within this line.
        
     
    
    
        
            Production Era:
        
        
            Models like the KXR 90/50 have been in production for several years, with minor updates. Specific production years are not detailed in the product description but the manual is stated as 'made specifically for this model and series'.