The Polaris Scrambler, offered in 400 and 500cc engine variants, represents a significant entry in the sport All-Terrain Vehicle (ATV) market from the late 1990s and early 2000s. These performance-oriented ATVs were engineered to provide versatility and power, featuring both 2-wheel drive and 4-wheel drive configurations to tackle a variety of terrains. With their sport-tuned suspension and robust engine performance for their era, the Scrambler models were designed to deliver an engaging riding experience, competing with other prominent brands in the performance ATV segment. This comprehensive manual serves as an essential guide for owners and technicians alike, covering all aspects of the 1999 and 2000 Scrambler 400 and 500 models. It details routine maintenance procedures, in-depth engine repair, fuel and cooling systems, transmission, steering, brakes, and the electrical system. The manual provides clear instructions for repairs, parts lookup, and advanced troubleshooting, ensuring that users can effectively maintain, diagnose, and repair their vehicles to keep them in optimal working condition. 🏷️ Basic Information Identification Make: Polaris Model: Scrambler Model Variant: 400, 500 Model Years: 1999, 2000 Vehicle Type: All-Terrain Vehicle (ATV) Drivetrain: 2WD (4x2) and 4WD (4x4) variants 👋 Introduction Market Position Market Segment: Performance-oriented sport ATVs Key Features Primary Selling Points: Versatility (400/500cc engines, 2WD/4WD), sport-tuned suspension, powerful engine performance for its era Competitive Analysis Competitors: Yamaha Wolverine, Suzuki QuadRunner, Honda FourTrax, Kawasaki Bayou/Prairie (depending on specific configurations) 📋 Manual Details Coverage Coverage Areas: All versions of 1999 Polaris Scrambler 400/500 ATVs; 2000 Polaris Scrambler 400 4x2, 400 4x4, and 500 ATVs Type Manual Type: Repair Manual, Owner's Manual, Parts Catalog (implied) Format Format: Electronic Downloadable PDF Language Language: English (assumed based on typical product offerings) Accessibility Delivery: Instant download after payment 📖 Manual Coverage Systems Systems Covered: General Information, Routine Maintenance, Engine Removal & Installation, Fuel System, Lubrication & Cooling System, Engine Specifications, Transmission, Drive Chain & Sprockets, Steering System, Shocks, Body Work, Intake & Exhaust, Electrical System, Advanced Troubleshooting Procedures Procedures Included: Repair procedures, parts lookup, routine maintenance, diagnostic troubleshooting Depth Technical Depth: Comprehensive, suitable for performing repairs, maintenance, and diagnostics 📊 Manual Specifications File Format File Format: PDF Features Searchable Text: Implied, standard for quality PDF manuals Printability: Printable pages for workshop use Support Lifetime Policy: Lifetime protection policy against loss or damage ⚙️ Engine Specifications Scrambler 400 Primary Engine: 375cc liquid-cooled, 2-stroke, single-cylinder engine Fuel System: Carburetor (e.g., Mikuni VM36/38 series, specific to model year) Ignition: CDI (Capacitor Discharge Ignition) Cooling System: Liquid-cooled Scrambler 500 Primary Engine: 499cc liquid-cooled, 4-stroke, single-cylinder engine Fuel System: Carburetor (e.g., Mikuni BSR series, specific to model year) Ignition: CDI (Capacitor Discharge Ignition) Cooling System: Liquid-cooled Common Compression Ratio: Varies by engine (e.g., 6.2:1 for Scrambler 400, 9.0:1 for Scrambler 500 - typical values, manual to confirm) 🔧 Transmission Drive System Transmission Type: Automatic, Polaris Variable Transmission (PVT) with Polaris Demand Drive (for 4x4 models) Gear Reduction: High and Low range, Reverse Drive Chain: O-ring sealed chain, specific size (e.g., 520) and pitch to be detailed in manual Final Drive: Shaft drive with differentials (front on 4x4), sealed chain drive (rear) 📐 Dimensions Exterior Length: Approx. 74.5 inches (189.2 cm) - typical for the era, manual to confirm exact Width: Approx. 44.5 inches (113 cm) - typical for the era, manual to confirm exact Height: Approx. 45.5 inches (115.6 cm) - typical for the era, manual to confirm exact Weights Dry Weight: Approx. 515-560 lbs (233-254 kg) depending on model/drivetrain - manual to confirm exact Payload Capacity: Typically around 200 lbs (90 kg) for racks - manual to confirm exact Towing Capacity: Typically around 1,500 lbs (680 kg) with accessory hitch - manual to confirm exact 🛡️ Safety Features Active Features Braking System: Hydraulic disc brakes (front and rear) - specifics on caliper and rotor size in manual Passive Features Handlebars: ATV-style handlebars with thumb throttle and brake levers Lighting: Headlights, taillight/brake light 💡 Technology Features Infotainment Dashboard Display: Basic digital/analog display for speedometer, odometer, fuel level, possibly engine hour meter. Specifics in manual. Driver Assistance Drive System Engagement: Polaris Demand Drive system for automatic 4WD engagement on 4x4 models, activated by throttle position and wheel speed sensors. Operation details in manual. 🔧 Maintenance Service Intervals Oil Change Interval: Typically every 20-40 operating hours or annually; specific type and capacity in manual Air Filter Cleaning: Frequent cleaning recommended, especially in dusty conditions; replacement intervals in manual Spark Plug Maintenance: Inspection and replacement intervals specified in manual Fluid Specifications Engine Oil Type: API SG or higher, SAE 0W-40 or 10W-40 (for 4-stroke Scrambler 500); 2-stroke oil injection for Scrambler 400 (specific type in manual) Coolant Type: Ethylene glycol-based antifreeze/coolant mixture; specific ratio and type in manual Transmission Fluid: Refer to manual for specific Polaris PVT fluid or compatible fluid for final drives/gearboxes Known Issues Common Wear Items: CV boots (especially on 4x4...