🏷️ Basic Information Identification Make: Suzuki Model: LT-Z400 QuadSport Model Code: LT-Z400K3 Year: 2003 Generation Generation Designation: First Generation Codes Vin Prefix: JS1 👋 Introduction Market Position Market Position: The Suzuki LT-Z400 QuadSport was a highly popular sport ATV positioned for recreational riders and amateur racers, known for its agile handling and potent engine. Competitive Analysis Competitors: Competed directly with models like the Yamaha YFZ450, Kawasaki KFX400, and Arctic Cat DVX400 (many of which shared a similar platform). Key Features Key Features Of Atv: Sport-tuned suspension, powerful 4-stroke engine, lightweight chassis, aggressive styling, rider-friendly ergonomics. Manual Value Proposition Manual Value Proposition: Empowers owners to perform maintenance and repairs, saving money and ensuring proper upkeep. Offers detailed insights for both novice and experienced mechanics. 📋 Manual Details Coverage Areas Coverage Areas: General Information, Periodic Maintenance, Engine, Fuel System, Cooling and Lubrication, Chassis, Electrical System, Servicing Information, Parts Page Count Page Count: Not Specified (Digital PDF) Manual Type Manual Type: Factory Service Manual / Workshop Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Systems Covered: Engine internal components, carburetor/fuel delivery, ignition system, cooling system (radiator, fan, coolant), lubrication system (oil pump, filter, passages), transmission, clutch, drivetrain, suspension (front forks, rear shock), steering, brakes (hydraulic system, calipers, master cylinder), electrical system (wiring harness, battery, stator, lights, starter), chassis frame, body panels, wheels, tires. Procedures Included Procedures Included: Scheduled maintenance, diagnostic procedures, troubleshooting guides for common problems, component removal and installation, engine overhaul (top-end and bottom-end), carburetor adjustment and cleaning, clutch adjustment and replacement, brake bleeding and service, suspension adjustments and rebuilds, electrical system testing, general repair procedures, parts identification. Technical Depth Technical Depth: Comprehensive, covering basic maintenance, advanced diagnostics, troubleshooting, and complete mechanical overhauls. Includes detailed torque specifications, clearances, and step-by-step instructions with illustrations and diagrams. 📊 Manual Specifications File Format File Format: PDF Print Quality Print Quality: High-resolution, suitable for printing individual pages or the entire manual. Binding Type Binding Type: Not Applicable (Digital Download) Paper Type Paper Type: Not Applicable (Digital Download) Compatibility Operating Systems Compatibility: Compatible with Windows PC OS, MAC OS, and Linux OS. Extraction Utility Compression Utility Requirement: May require a compression utility (e.g., 7-Zip) if the PDF is located within an archive. ⚙️ Engine Specifications Primary Engine Engine Type: 4-stroke, DOHC, 4-valve, Single-cylinder Displacement: 398 cc (24.3 cu. in.) Bore X Stroke: 90.0 mm x 78.5 mm (3.54 in. x 3.09 in.) Performance Horsepower: Approx. 32-34 HP (Varies slightly based on specific tuning and region) Torque: Not explicitly specified in product info, but generally strong low-to-mid range torque for a single-cylinder. Fuel System Fuel Delivery: Mikuni BSR36 carburetor Fuel Type: Unleaded gasoline Cooling System Cooling Method: Liquid-cooled Lubrication System Oil Type Specification: Suzuki 4-stroke motorcycle oil (e.g., SAE 10W-40 API SG or higher) or equivalent. Engine Features Engine Starting System: Electric Starter 🔧 Transmission Standard Transmission Type: 5-speed manual with reverse Optional Optional Transmissions: None Features Clutch Type: Wet multi-plate Final Drive: O-ring sealed chain 📐 Dimensions Exterior Overall Length: Approx. 1820 mm (71.7 in.) Overall Width: Approx. 1170 mm (46.1 in.) Overall Height: Approx. 1085 mm (42.7 in.) Weights Dry Weight: Approx. 177 kg (390 lbs.) Fuel Tank Capacity: 10.0 L (2.6 US gal.) Wheelbase Wheelbase: Approx. 1270 mm (50.0 in.) Ground Clearance Ground Clearance: Approx. 265 mm (10.4 in.) 🛡️ Safety Features Ratings Safety Ratings: N/A (ATVs are not subject to standardized automotive safety ratings like cars) Active Features Active Safety Features: Hydraulic disc brakes (front and rear), responsive steering, stable chassis design for sport riding. Passive Features Passive Safety Features: Ergonomic design for rider control, durable frame construction. Warnings Recommended Safety Gear: Helmet, eye protection, gloves, long pants, long-sleeved shirt, sturdy boots. 💡 Technology Features Infotainment Infotainment System: Not applicable (basic ATV electronics). Driver Assistance Driver Assistance Features: None (focus is on rider input and control). Connectivity Connectivity Features: None. Lighting Lighting System: Dual halogen headlights, LED tail light. 🔧 Maintenance Service Intervals Initial Service: Refer to manual for break-in service (typically around 10-15 hours or 500 miles). Engine Oil Change: Every 1000 km (600 mi) or 6 months, whichever comes first. Or every 20 hours of operation. Oil Filter Replacement: At each engine oil change. Air Filter Cleaning: Frequent cleaning recommended, especially in dusty conditions (e.g., every 30-50 hours). Spark Plug Inspection Replacement: Inspect every 1000 km (600 mi) or 6 months; replace as needed. Valve Clearance Check: Every 1000 km (600 mi) or 6 months. Fluid Specifications Engine Oil Capacity: 1.8 L (1.9 US qt.) with filter change. Coolant Type: Suzuki Super Long Life Coolant or equivalent ethylene glycol-based coolant, mixed with distilled water at a 50:50 ratio. Brake Fluid Type: DOT 3 or DOT 4 hydraulic brake fluid. Transmission Oil Type: Refer to manual; typically Suzuki Gear Oil SAE 80 or equivalent API GL-4. Known Issues...