🏷️ Basic Information

Make:

Kymco

Model:

Mongoose KXR 90/50

Product Type:

Service Repair Manual

Product Format:

Digital Download (PDF)

Kymco Model Code Kxr90:

Likely a specific alphanumeric code, not provided in source

Kymco Model Code Kxr50:

Likely a specific alphanumeric code, not provided in source

👋 Introduction

Target Audience:

DIY enthusiasts and Kymco Mongoose KXR 90/50 owners seeking to perform maintenance and repairs.

Value Proposition:

Provides significant cost savings compared to professional service and ensures proper maintenance for longevity.

Manual Benefits:

Enables owners to understand their vehicle better, perform routine maintenance, and tackle repairs efficiently.

Accessibility:

Instant download eliminates shipping costs and waiting times.

📋 Manual Details

Primary Coverage:

Kymco Mongoose KXR 90 and KXR 50 models

Estimated Page Count:

Not specified, but comprehensive coverage implies hundreds of pages

Manual Type:

Workshop Service Repair Manual

Language:

English

File Format:

PDF

Device Compatibility:

All Versions of Windows & Mac, APP ISO, iPhone, iPod, Android

Software Requirements:

Adobe PDF Reader

📖 Manual Coverage

Engine Mechanical:

Cylinder Head/Valves, Cylinder/Piston, Crankcase/Crankshaft, Engine Removal/Installation

Fuel System:

Fuel System, Fuel Pump, Fuel Tank, Carburetor

Lubrication Cooling:

Lubrication System, Cooling System

Drivetrain:

Drive And Driven Pulley, Final Reduction

Electrical Ignition:

A.C. Generator/Starter Clutch, Ignition System, Battery/Charging System, Electric Starter

Chassis Suspension:

Steering Handlebar, Front Wheel/Front Shock Absorber, Rear Fork/Rear Wheel/Rear Shock Absorber

Brakes:

Brake System

Bodywork:

Frame Covers/Exhaust Muffler

Electrical Components:

Lights/Meters/Switches, Wiring Diagrams

General Maintenance:

Inspection/Adjustment, Lubrication, Fluid Changes

Engine Repair:

Complete engine disassembly, reassembly, and component replacement procedures

Transmission Repair:

Pulley system inspection, adjustment, and component replacement

Electrical Diagnostics:

Troubleshooting for charging, ignition, starting, and lighting systems with detailed wiring diagrams

Chassis Repair:

Steering, suspension, wheel, and brake system maintenance and repair

Depth Of Coverage:

Comprehensive, suitable for both DIY enthusiasts and professional technicians. Covers from basic inspections to complex overhauls.

Diagnostic Information:

Includes troubleshooting guides and diagnostic procedures for common issues.

Rebuild Procedures:

Detailed instructions for complete engine, transmission, and component rebuilds.

Diagrams Illustrations:

High-quality diagrams and illustrations for clarity and accuracy.

📊 Manual Specifications

Digital Format:

PDF

Printable Pages:

All pages are printable, allowing for physical reference.

Digital Binding:

N/A (Digital Download)

Digital Paper Type:

N/A (Digital Download)

Delivery Method:

Instant Download

Usage License:

For personal use by the purchaser; redistribution prohibited.

⚙️ Engine Specifications

Engine Type 90:

Likely a 2-stroke, air-cooled engine (typical for this class of ATV). Specific displacement and design details would be in the manual.

Engine Type 50:

Likely a 2-stroke, air-cooled engine (typical for this class of ATV). Specific displacement and design details would be in the manual.

Horsepower Estimate 90:

Typically in the 5-7 HP range for a 90cc 2-stroke, but specific figures require manual confirmation.

Horsepower Estimate 50:

Typically in the 3-5 HP range for a 50cc 2-stroke, but specific figures require manual confirmation.

Fuel Delivery:

Carburetor

Fuel Type:

Unleaded gasoline (specific octane rating would be in the manual)

Ignition System:

CDI (Capacitor Discharge Ignition)

🔧 Transmission

Transmission Type:

Automatic (CVT - Continuously Variable Transmission) with primary and driven pulleys

Optional Transmission:

N/A (typically single speed automatic for this class)

Drive System:

Chain drive to rear wheel (common for this ATV class)

Transmission Fluid:

Specific fluid type and capacity would be detailed in the manual, often a light weight gear oil for the final drive.

📐 Dimensions

Overall Length:

Not specified, but typically compact for youth ATVs.

Overall Width:

Not specified, but typically narrow for maneuverability.

Overall Height:

Not specified.

Dry Weight:

Not specified, but expected to be under 200 lbs for this class.

Ground Clearance:

Not specified, but designed for light off-road use.

Front Tire Size:

Likely 16x7-8 or similar (specifics in manual)

Rear Tire Size:

Likely 16x7-8 or similar (specifics in manual)

Wheel Bolt Pattern:

Likely 4x110mm or similar (specifics in manual)

🛡️ Safety Features

Atv Safety Classification:

Designed as a youth ATV, emphasis on user safety and proper operation.

Brakes:

Front and rear drum brakes or possibly front disc/rear drum (manual to confirm specifics).

Throttle Limiter:

Often equipped with a throttle limiter screw for younger riders (details in manual).

Handguards:

Likely equipped with basic handguards for rider protection.

Lighting:

Headlights, taillight, and brake light for visibility.

💡 Technology Features

Infotainment System:

N/A (basic ATV with mechanical controls)

Driver Assistance Features:

N/A (basic ATV functionality)

Connectivity Options:

N/A

🔧 Maintenance

Oil Change Interval:

Typically every 1000-1500 km or annually, but specific interval for gearbox oil and 2-stroke oil (if applicable) would be in the manual.

Air Filter Cleaning:

Frequent checks recommended, cleaning/replacement based on operating conditions (details in manual).

Spark Plug Replacement:

Typically every 3000-5000 km, but requires manual confirmation of type and gap.

Engine Oil Type:

Likely SAE 10W-40 or 10W-30, API SG or higher (specifics in manual).

Coolant Type:

If liquid-cooled, typically ethylene glycol-based coolant. The KXR 90/50 is likely air-cooled, so this may not apply.

Brake Fluid Type:

DOT 3 or DOT 4, depending on the system (manual to confirm).

Common Wear Items:

Drive belts, brake pads, suspension bushings, and carburetor jets can be common wear items on ATVs of this age and type.

Carburetor Cleaning:

Carburetors on smaller 2-stroke engines can be prone to gumming up if fuel is left standing for extended periods, requiring regular cleaning.

📚 Vehicle History

Kymco Heritage:

Kymco (Kwang Yang Motor Co., Ltd.) is a Taiwanese company known for producing motorcycles, scooters, ATVs, and utility vehicles.

Mongoose Series:

The Mongoose series represents Kymco's line of sport ATVs, with the KXR 90/50 specifically targeted at younger riders.

Production Period:

The KXR 90/50 has been in production for several years, with minor updates and variations across model years. Specific production years covered by this manual are not stated but are likely to encompass a significant range.

🏆 Awards & Recognition

Brand Awards:

Kymco has received various industry awards for its products, though specific awards for the Mongoose KXR 90/50 are not detailed in the product information.

Product Reviews:

Owner reviews often highlight the Kymco Mongoose line for its affordability and suitability for youth riders, with performance generally considered adequate for its intended purpose.

Safety Certifications:

Likely meets relevant safety standards for ATVs in its target markets.