The LT-Z50 QuadSport, also known as the QuadSport 50, is a youth ATV designed for entry-level riders and their parents or guardians. Produced from 2004 to 2009, this model emphasizes ease of use, safety features, and reliable performance, making it a suitable choice for young adventurers. The ATV's legacy, combined with the LT-Z50's specific design for younger users, positions it as a capable and user-friendly option within its segment, aiming to provide a positive introduction to off-road riding. This Factory Service Manual provides comprehensive information for the LT-Z50 QuadSport, covering model years 2004 through 2009. The manual details essential maintenance procedures, including routine service intervals for oil changes, filter cleaning, and chain lubrication, alongside troubleshooting guides for common issues like carburetor clogging. It offers step-by-step repair instructions for all major systems, from the engine mechanicals and fuel system to the electrical, braking, and suspension components. Detailed technical specifications, torque values, and clear wiring diagrams are included to assist owners and technicians in maintaining and repairing the vehicle effectively. 🏷️ Basic Information Identification Make: Suzuki Model: LT-Z50 QuadSport Model Nickname: QuadSport 50 Codes Product Code Identifier: LT-Z50 👋 Introduction Market Position Target Audience: Entry-level youth ATV riders and their parents/guardians responsible for maintenance and repair. Segment: Youth ATV Competitive Analysis Key Competitors: Honda TRX90X, Yamaha YFM90R, Polaris Sportsman 90. Key Features Vehicle Focus: Designed for young riders, emphasizing ease of use, safety features, and reliable performance. Manual Value Proposition: Empowers owners and technicians with the precise information needed for proper upkeep and repair, reducing reliance on dealerships for routine tasks and diagnostics. 📋 Manual Details Coverage Areas Applicable Years: 2004, 2005, 2006, 2007, 2008, 2009 Page Count Estimated Pages: 200-300 Manual Type Type: Factory Service Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Engine Mechanical: Complete engine teardown, inspection, repair, and reassembly including cylinder, piston, crankshaft, camshaft, valve train, and lubrication system. Fuel System: Carburetor (keihin), fuel tank, fuel lines, fuel filter maintenance, adjustment, and troubleshooting. Ignition System: CDI ignition system, spark plug, ignition coil, timing inspection and adjustment. Drive Train: Automatic centrifugal clutch, CVT transmission operation, gear reduction, chain drive lubrication and adjustment. Electrical System: Wiring diagrams, battery, starter motor, lighting system, charging system (stator), and troubleshooting. Suspension: Front and rear suspension components, shock absorbers, spring replacement, and geometry adjustments. Braking System: Front and rear drum brake systems, brake shoe replacement, cable adjustment, and hydraulic system (if applicable). Steering System: Handlebar, steering column, tie rods, and steering knuckles inspection and adjustment. Frame And Bodywork: Chassis components, body panel removal and installation, seat, fenders, and protective guards. Procedures Included Routine Maintenance: Oil changes, filter replacement, spark plug inspection, chain lubrication, tire pressure checks, and general inspection procedures. Troubleshooting: Diagnostic charts and procedures for common starting issues, performance problems, and system malfunctions. Repair Procedures: Step-by-step instructions for disassembly, component replacement, and reassembly for all major systems. Specifications And Tolerances: Detailed technical specifications, torque values, clearances, and measurement tolerances for critical components. Wiring Diagrams: Complete, easy-to-read electrical wiring schematics for all model years covered. Technical Depth Depth: Comprehensive factory-level detail suitable for both novice mechanics and experienced technicians. 📊 Manual Specifications File Format Quality: High-resolution, searchable PDF with clear text and images. Print Quality Printability: Printable pages for easy workshop use. Binding Type Binding Type: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Type: Four-stroke, SOHC, Air-cooled Displacement: 49cc Bore X Stroke: 39.0 mm x 41.5 mm Compression Ratio: 9.5:1 Performance Horsepower Approximate: 3.1 HP @ 7,000 rpm (subject to regional regulations) Torque Approximate: 3.2 Nm @ 5,000 rpm (subject to regional regulations) Fuel System Fuel Delivery: Keihin VM10/1 carburetor Fuel Tank Capacity: 2.0 L (0.5 gal) Lubrication Oil Type: SAE 10W-40 API SE, SF, SG or higher Oil Capacity With Filter Change: 0.8 L (0.85 US qt) 🔧 Transmission Standard Type: Automatic centrifugal clutch with CVT (Continuously Variable Transmission) Drive Method: O-ring sealed chain, 25H, 94 links Features Gear Reduction Ratio: 9.060 (21/8 x 18/7) 📐 Dimensions Exterior Overall Length: 1,450 mm (57.1 in) Overall Width: 810 mm (31.9 in) Overall Height: 910 mm (35.8 in) Wheelbase: 970 mm (38.2 in) Weights Curb Weight: 70 kg (154.3 lbs) Gross Vehicle Weight Rating Gvwr: 132 kg (291 lbs) (includes rider, accessories, and cargo) Wheels Tires Front Tire Size: AT16 x 7-7 Rear Tire Size: AT16 x 7-7 Suspension Travel Front Suspension Travel: 70 mm (2.8 in) Rear Suspension Travel: 70 mm (2.8 in) 🛡️ Safety Features Ratings Safety Standards: Designed to meet ASTM F2088, F2218, F1906, F1306, F1203, F1712, F2093, F2346 and ANSI B71.9 standards (check local regulations). Active Features Throttle Limiter: Adjustable throttle limiter screw for controlled speed. Tether Cord: Optional electronic tether cord system (often dealer-installed or aftermarket). Passive Features Footwells: Full floorboards for rider foot protection. Chain...