The 2009 model, also known as the Quadsport Z400, is a high-performance sport ATV renowned for its reliability, strong performance, and user-friendly operation. This model represents a mature iteration of a highly influential platform, featuring a responsive 398 cc liquid-cooled, single-cylinder engine with fuel injection for optimized performance. Its design is well-suited for recreational riders and off-road enthusiasts seeking a capable and dependable machine. The LT-Z400 is recognized for its solid engineering and has earned acclaim within the sport ATV segment for its handling and value. This comprehensive factory service manual provides detailed guidance for the repair, service, maintenance, and troubleshooting of your 2009 model. It covers all essential systems, including the engine, transmission, chassis, suspension, brakes, and electrical components. Within its pages, you will find step-by-step procedures for routine maintenance tasks such as oil changes and filter replacements, as well as in-depth instructions for engine and transmission overhauls, diagnostic procedures for the EFI system, and repair guidance for all major vehicle components. This manual is an indispensable resource for both DIY enthusiasts and professional technicians aiming to maintain the optimal performance and longevity of the vehicle. 🏷️ Basic Information Identification Make: Suzuki Model: LT-Z400 (Quadsport Z400) Year: 2009 Product Name: Suzuki Z400 LTZ400 2009 Repair Service Manual PDF Download 👋 Introduction Market Position Category: High-performance Sport ATV Competitive Analysis Competitors: Honda TRX400EX/X, Yamaha YFZ450, Kawasaki KFX400/450R Key Features Vehicle Appeal: Reputation for reliability, strong performance, and user-friendly operation, particularly appealing to recreational riders and off-road enthusiasts. Manual Value Proposition Diy Focus: Designed for DIY enthusiasts and professional technicians, enabling owners to perform maintenance, repairs, and diagnostics effectively, saving on labor costs. 📋 Manual Details Coverage Areas Primary Coverage: Repair, Service, Maintenance, Troubleshooting, Rebuild, Diagnosis Page Count Estimated Page Count: Varies (typical comprehensive service manuals can range from 300-600+ pages, based on detail level) Manual Type Type: Factory Service Manual / Workshop Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Engine: Complete engine overhaul, internal components (piston, conrod, crankshaft, camshafts, valves), cooling system, lubrication system, ignition system, starting system, EFI system (fuel injection, ECU, sensors, fuel pump, injectors) Transmission: Gearbox, clutch system (primary, secondary), reverse gear, drive shaft, linkage Chassis And Suspension: Frame, swingarm, linkage, front forks, rear shock absorber, steering system (handlebar, steering stem), wheel bearings, hubs Brakes: Hydraulic brake systems (front and rear rotors, calipers, master cylinders, brake lines, brake pads), parking brake Electrical: Battery, charging system (stator, rectifier/regulator), lighting (headlights, taillights), ignition coil, starter motor, wiring diagrams, fuses, switches, sensors, PGM-FI indicator Body And Trim: Plastics, fenders, seat, fuel tank, handlebar, control cables (throttle, clutch), skid plates Procedures Included Maintenance: Oil changes, filter replacements, chain adjustment, lubrication, fluid flushes (coolant, brake), valve clearance adjustment, spark plug replacement, air filter cleaning/replacement, tire pressure checks Troubleshooting: Diagnostic charts, common problems (e.g., no spark, starting issues, performance problems), error code interpretation (if applicable to EFI system) Repair And Rebuild: Engine rebuild (cylinder, piston, rings, head, crankshaft), transmission overhaul, suspension repair, brake caliper rebuild, electrical component replacement Installation: Component installation (e.g., exhaust systems, aftermarket parts if guidance is included), wiring harness installation Technical Depth Depth: Comprehensive, covering everything from basic maintenance to complete engine and chassis overhauls. Includes detailed torque specifications, clearances, and diagnostic procedures. 📊 Manual Specifications File Format File Type: PDF Print Quality Printability: Printable on any standard printer, high-quality illustrations and diagrams Binding Type Binding: Not Applicable (Digital Download) Paper Type Paper Quality: Not Applicable (Digital Download) File Size Size Consideration: Can be large (up to 4000MB mentioned), requires adequate storage and download connection. Specific size should be checked on the download page. ⚙️ Engine Specifications Primary Engine Engine Type: Four-stroke, DOHC, Liquid-cooled, Single-cylinder Displacement: 398 cc Bore X Stroke: 90.0 mm x 78.5 mm Compression Ratio: 11.2 : 1 Performance Estimated Horsepower: Approximately 30-35 HP (varies with tuning and exhaust) Estimated Torque: Approximately 25-30 lb-ft (varies with tuning and exhaust) Fuel System Fuel Delivery: Fuel Injection (EFI) - Keihin 37mm throttle body, single injector. Manual may cover EFI components like fuel pump, regulator, injector service. Ignition Ignition System: Electronic Ignition (CDI) Cooling Cooling Method: Liquid-cooled Lubrication Oil Type Recommendation: API SG or SH, SAE 10W-40. Manual will specify precise Suzuki recommendations and viscosity charts. Starting System Starter: Electric Start 🔧 Transmission Standard Type: 5-speed constant mesh with reverse Clutch Type: Wet multi-plate Features Final Drive: O-ring sealed chain Fluid Specifications Transmission Oil: Manual will specify correct Suzuki gear oil or equivalent. 📐 Dimensions Exterior Overall Length: Approx. 1,845 mm (72.6 in) Overall Width: Approx. 1,170 mm (46.1 in) Overall Height: Approx. 1,110 mm (43.7 in) Weights Curb Weight: Approx. 190 kg (419 lbs) Fuel Tank Capacity: Approx. 10.0 L (2.6 US gal) Wheels And Tires Front Tires: AT21x7-10 Bias or Radial Rear Tires: AT20x10-9 Bias or Radial Front Wheel Offset: Manual specifies...