The 2009-2010 Suzuki LT-Z400 QuadSport represents a significant offering in the high-performance sport ATV segment, renowned for its agility, power, and rider control, making it a favorite for recreational riding and competitive off-roading. Built upon a robust second-generation platform, this model benefits from Suzuki's extensive legacy in ATV manufacturing, a heritage known for delivering reliable and capable machines. Its design prioritizes performance, with a potent four-stroke, liquid-cooled engine and a responsive chassis engineered to tackle demanding terrain with confidence and precision. This comprehensive workshop service repair manual provides detailed guidance for the maintenance and repair of your 2009-2010 Suzuki LT-Z400 QuadSport. It covers all major mechanical, electrical, and bodywork aspects, including in-depth procedures for engine overhaul, drivetrain systems, suspension, brakes, and steering. The manual also details scheduled maintenance, troubleshooting diagnostics, and rebuild procedures, along with essential technical specifications and torque values. Designed to be an indispensable resource for both professional technicians and advanced DIY enthusiasts, this English-language manual ensures the optimal performance and longevity of your QuadSport. 🏷️ Basic Information Identification Make: Suzuki Model: LT-Z400 QuadSport Model Nickname: QuadSport Year: 2009, 2010 Codes Engine Code Prefix: K4 Generation Platform Generation: Second Generation (2003-2014) 👋 Introduction Market Position Segment Positioning: High-performance sport ATV, popular in recreational and competitive off-roading. Competitive Analysis Key Competitors 2009 2010: Yamaha YFZ450, Honda TRX450R, Kawasaki KFX450R. Key Features Vehicle Performance Focus: Designed for agility, power, and rider control in off-road conditions. Key Features Manual Manual Utility: Essential tool for maintaining optimal performance and longevity of the LT-Z400. 📋 Manual Details Coverage Areas Primary Coverage: 2009-2010 Suzuki LT-Z400 QuadSport Secondary Coverage Notes: Likely covers all major mechanical, electrical, and bodywork aspects for the specified model years. Page Count Estimated Page Count: Likely 300-600 pages (typical for a comprehensive workshop manual) Manual Type Manual Type: Workshop Service Repair Manual Distribution Method: PDF Download Language Language: English Format File Format: PDF Compatibility: Windows/macOS Software Requirement: Adobe PDF Reader Printability: Yes 📖 Manual Coverage Systems Covered Engine Systems: Engine overhaul, disassembly, assembly, tuning, fuel system, lubrication, cooling, ignition, emissions control. Drivetrain Systems: Transmission, gearbox, clutch, final drive, driveshaft, axles, differential (if applicable). Suspension Systems: Front and rear suspension, shock absorbers, control arms, linkages, adjustments. Brake Systems: Hydraulic brake system, calipers, master cylinders, brake lines, pads, rotors, bleeding procedures. Steering Systems: Steering column, tie rods, steering knuckle, steering rack, adjustments. Body And Accessories: Body panels, seat, fenders, plastics, lighting, electrical accessories, chassis components. Electrical Systems: Wiring diagrams, battery, charging system, ignition system, lighting, starter, diagnosis. Procedures Included Maintenance Procedures: Scheduled maintenance, oil changes, filter replacements, lubrication, adjustments, inspections. Diagnostic Procedures: Troubleshooting guides, symptom-based diagnostics, fault code interpretation (if applicable). Repair Procedures: Step-by-step instructions for component removal, installation, and repair. Rebuild Procedures: Detailed guidance for complete engine, transmission, or component rebuilds. Specifications And Tolerances: Torque specifications, clearances, fluid capacities, diagnostic parameters. Technical Depth Depth Of Coverage: Comprehensive; equivalent to dealership technician manuals. Target Audience: Professional technicians and advanced DIY enthusiasts. 📊 Manual Specifications File Format PDF Quality: High-resolution, searchable text and clear image reproduction. Print Quality Print Readability: Designed for clear printing of text and diagrams. Binding Type Binding Type Download: N/A (Digital Download) Paper Type Paper Type Print: N/A (Digital Download - User prints as needed) ⚙️ Engine Specifications Primary Engine Engine Type: Four-stroke, DOHC, liquid-cooled, single-cylinder Displacement: 398 cc (24.3 cu in) Bore X Stroke: 90.0 mm x 78.5 mm Compression Ratio: 11.3:1 Performance Horsepower Estimated Hp: Approx. 38-42 HP (at crankshaft, stock) Torque Estimated Lb-Ft: Approx. 27-29 lb-ft (at crankshaft, stock) Fuel System Fuel Delivery: Mikuni BSR36, 36mm flat-slide carburetor with TPS Fuel Type: Unleaded gasoline, 87 octane or higher Lubrication Oil Type: Suzuki ECSTAR R5000 10W-40 or API SG/SH/SJ SJ/SL, JASO MA certified 4-stroke motorcycle oil Cooling System Cooling Method: Liquid-cooled Coolant Type: Suzuki P-FC Coolant or equivalent ethylene glycol-based antifreeze with demineralized water (50/50 mix) 🔧 Transmission Standard Transmission Type: 5-speed manual with reverse Optional Optional Transmission: N/A Features Clutch Type: Wet multi-plate, manual clutch Final Drive: O-ring sealed chain drive Fluid Specifications Transmission Oil Type: Suzuki ECSTAR M7 80W-90 or API GL-4 SAE 80W-90 gear oil 📐 Dimensions Exterior Overall Length: 70.7 in (1795 mm) Overall Width: 45.5 in (1155 mm) Overall Height: 41.7 in (1060 mm) Wheelbase: 49.2 in (1250 mm) Ground Clearance: 10.4 in (265 mm) Weights Dry Weight: 370 lbs (168 kg) Curb Weight: Approx. 392 lbs (178 kg) with all necessary fluids. Fuel Tank Capacity: 2.6 US gal (10 L) 🛡️ Safety Features Ratings Atv Safety Standards: Meets ANSI/SVIA 1-2010 standards. Active Features Throttle Limiter: Adjustable thumb throttle for controlled acceleration. Passive Features Chassis Design: Reinforced steel frame for durability and rider protection. Parking Brake: Handlebar-mounted parking brake lever. 💡 Technology Features Infotainment Infotainment System: N/A (No integrated infotainment system typical for sport ATVs of this era). Driver Assistance Traction Control: N/A...