This document provides comprehensive service information for the 2001 Sportsman 400 and 500 Duse & H.O. models, built upon the first-generation Sportsman platform. These All-Terrain Vehicles (ATVs) are known for their robust engineering and capability, designed for a variety of off-road applications. The Sportsman line, a staple in ATV offerings, has a reputation for comfort, performance, and durability. This manual covers model numbers including A01CH42AA through A01CH50AJ and engine models EH42PLE05, EH50PLE09, and EH50PLE13, ensuring broad applicability for owners and technicians. This Factory Workshop Manual offers in-depth guidance for maintaining and repairing your Sportsman. It is structured to be as comprehensive as the manuals used by local dealers, providing step-by-step instructions for all major systems, including the engine, fuel system, body, suspension, PVT system, final drive, transmission, brakes, and electrical components. With hundreds of detailed illustrations, the manual facilitates everything from routine maintenance tasks like oil changes and filter cleaning to complete machine disassembly and rebuilds. It serves as an invaluable resource for do-it-yourself enthusiasts and professional mechanics alike, ensuring optimal performance and longevity of the vehicle. 🏷️ Basic Information Identification Make: Polaris Model: Sportsman 400 / 500 Duse & H.o. Year: 2001 Generation Generation: First Generation Sportsman platform Codes Model Numbers Covered: A01CH42AA, A01CH42AB, A01CH42AC, A01CH50AD, A01CH50AA, A01CH50AB, A01CH50AE, A01CH50AF, A01CH50AJ Engine Models Covered: EH42PLE05, EH50PLE09, EH50PLE13 👋 Introduction Market Position Target Audience: Do-it-yourself enthusiasts and experienced mechanics. Competitive Analysis Value Proposition: Inexpensive way to maintain and repair the ATV, offering dealer-level information. Key Features Dealer Equivalence: Identical to the manual used by local dealers. Instruction Style: Detailed illustrations and step-by-step instructions. 📋 Manual Details Coverage Areas Manual Type: Factory Workshop Manual Language: English Format: PDF Download Compatibility: All Versions of Windows & Mac Page Count Page Count: Not specified, but implied to be comprehensive with hundreds of illustrations 📖 Manual Coverage Systems Covered Major Systems: General, Maintenance, Engine, Fuel System/Carburetion, Body/Suspension, PVT System, Final Drive, Transmission, Brakes, Electrical Procedures Included Repair Procedures: Step-by-step instructions for repair and service based on complete disassembly of the machine. Maintenance Procedures: Detailed guidance on routine maintenance and service tasks. Troubleshooting: Implied through detailed instructions and diagnostic information typical of a workshop manual. Technical Depth Depth Of Information: Comprehensive, covering all aspects from basic maintenance to complete rebuilds, equivalent to dealer-level service. Illustrations: Hundreds of detailed illustrations to guide procedures. Printability: All pages are printable for workshop use. 📊 Manual Specifications File Format File Type: PDF Readability Software: Adobe PDF Reader Print Quality Print Quality Description: High-quality printable pages suitable for garage environments. Binding Type Binding Type: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) Delivery Delivery Method: Instant Download ⚙️ Engine Specifications Primary Engine Engine Type 400: 4-stroke (implied by model designation and typical Polaris engines of the era) Engine Displacement 400: 400cc class (EH42PLE05 engine code suggests approximately 425cc) Engine Type 500: 4-stroke, liquid-cooled (standard for this model range) Engine Displacement 500: 500cc class (EH50PLE09 and EH50PLE13 engine codes suggest approximately 499cc) Performance Horsepower 400: Refer to manual for specific output, typically in the 20-25 HP range. Horsepower 500: Refer to manual for specific output, typically in the 26-30 HP range for the 500 HO. Fuel System Fuel Delivery: Carburetor (explicitly mentioned in 'Fuel System / Carburetion' coverage). Carburetor Details: Specific carburetor models (e.g., Mikuni) and jetting specifications covered in the manual. 🔧 Transmission Standard Transmission Type: Automatic (Polaris Variable Transmission - PVT System). Features Pvt System Coverage: Detailed coverage of the PVT system, including belt inspection, adjustment, and replacement. Gear Selection: High/Low range, Neutral, Reverse, Park (standard for Sportsman models). Final Drive: Shaft drive with Polaris Automatic 4x4 system (on applicable models) and independent rear suspension (IRS) on many 500 models. Manual covers Final Drive systems. 📐 Dimensions Exterior Atv Type: All-Terrain Vehicle (ATV) Weights Dry Weight 400: Approximately 625 lbs (283 kg) - representative for the 400 model. Dry Weight 500: Approximately 647 lbs (294 kg) for the 500 Duse/HO - representative for the 500 models. Towing Capacity: Typically 1500 lbs (680 kg) - refer to manual for exact specification. Front Rack Capacity: Typically 90 lbs (41 kg). Rear Rack Capacity: Typically 180 lbs (82 kg). 🛡️ Safety Features Ratings Safety Standards: Adherence to industry safety standards for ATVs. Manual provides guidance on safe operation and maintenance. Active Features Braking System: Hydraulic disc brakes (front and rear). Manual covers brake system maintenance, bleeding, and component replacement. Passive Features Rollover Protection: N/A (ATVs are open vehicles; emphasis on rider skill and protective gear). 💡 Technology Features Infotainment Infotainment Features: N/A (Basic instrumentation: speedometer, odometer, fuel gauge, indicator lights). Driver Assistance Driver Assistance Systems: N/A (Focus on mechanical systems and rider control). Connectivity Connectivity Options: N/A 🔧 Maintenance Service Intervals Oil Change Interval: Typically every 100 hours or 6 months; refer to manual for specific interval and engine break-in...