The Eiger LT-A400 / LT-A400F is a capable mid-range utility all-terrain vehicle produced between 2002 and 2007. Designed to offer a balance of performance and affordability, it appeals to riders for both recreational pursuits and light-to-moderate work tasks. Key features include a reliable 376cc single-cylinder engine, an automatic transmission with high, low, neutral, and reverse gears, and independent front suspension for a comfortable ride. The 4x4 models offer selectable 2WD/4WD engagement via an electronic push-button system. Known for its robust engineering and dependable performance, the Eiger series competed effectively in its market segment, providing a solid option for those seeking a versatile ATV. This comprehensive service manual covers the Eiger LT-A400 and LT-A400F models from 2002 through 2007. It serves as an essential resource for owners, mechanics, and technicians, detailing a wide array of maintenance procedures, troubleshooting guides, and technical specifications. Key areas include in-depth coverage of engine systems, transmission and drivetrain, fuel and electrical systems, suspension, steering, and brakes. The manual also provides routine maintenance schedules, rebuild procedures for major components, critical torque specifications, and diagnostic charts to help resolve common issues, ensuring the longevity and optimal performance of the vehicle. 🏷️ Basic Information Identification Make: Suzuki Model: Eiger LT-A400 / LT-A400F Product Name: 2002-2007 Suzuki Eiger LT-A400 400F ATV Repair Manual PDF Download Codes Model Code Prefix: LT-A400 👋 Introduction Market Position Market Position: The Suzuki Eiger LT-A400 series was positioned as a capable, mid-range utility ATV, appealing to riders seeking a balance of performance and affordability for recreational riding and light to moderate work tasks. Competitive Analysis Competitors: Competed with models from Yamaha (Grizzly), Honda (FourTrax), Kawasaki (Bayou/Brute Force), and Polaris (Sportsman) in the mid-size utility ATV segment. Key Features Key Features: Single-cylinder engine, automatic transmission, selectable 2WD/4WD (on 4x4 models), independent front suspension, robust chassis, reliable performance for its class. Suspension Type: Independent front suspension (double A-arm), Swingarm rear suspension with shock absorber. 📋 Manual Details Coverage Areas Covered Years: 2002, 2003, 2004, 2005, 2006, 2007 Covered Models: LT-A400F Eiger 4x2 Automatic, LT-A400F Eiger 4x4 Automatic Page Count Estimated Page Count: 300-400 (typical for this era and vehicle type) Manual Type Manual Type: Factory Service Manual / Repair Manual / Workshop Manual Additional Manual Types: Includes sections relevant to Owner's Manual content (routine maintenance, basic operation) and Parts Catalog information (component identification). Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Engine Systems: Engine removal/installation, lubrication, cooling, cylinder head, piston, crankshaft, camshaft, valve timing, carburetor (or fuel injection if applicable), ignition system, starter motor, compression tests, internal engine repairs. Transmission Drivetrain: Automatic transmission operation and repair, drive chain adjustment and replacement, sprocket inspection and replacement, final drive, CV joints, propeller shafts (for 4x4 models). Fuel System: Fuel tank, fuel lines, fuel filter, carburetor/fuel injection system, fuel pump, fuel system diagnostics. Electrical System: Wiring diagrams, battery, charging system (alternator/stator, rectifier/regulator), starting system, lighting, instrumentation, switches, fuses, relays, troubleshooting electrical faults. Suspension Steering: Front and rear suspension systems, shock absorbers, springs, control arms, bushings, steering system components, tie rods, steering linkage, alignment procedures. Brakes: Hydraulic brake system (front and rear), brake calipers, master cylinders, brake lines, brake pads, brake disc inspection and replacement, bleeding procedures, parking brake. Bodywork Chassis: Frame inspection, body panels, plastic components, fenders, seat, rack systems, removal and installation of body parts. Procedures Included Routine Maintenance: Oil changes, filter replacement, air filter cleaning/replacement, spark plug inspection/replacement, valve clearance checks, lubrication points, drive chain maintenance. Troubleshooting: Diagnostic charts, common problems and solutions, symptom-based troubleshooting for engine, electrical, and mechanical issues. Rebuild Procedures: Detailed instructions for engine overhauls, transmission rebuilds, carburetor overhaul, brake caliper rebuilds, and other major component repairs. Torque Specifications: Crucial torque values for engine components, suspension, wheels, and other critical fasteners. Ignition System Repair: Spark plug, ignition coil, CDI unit, stator testing and replacement. Cooling System Service: Radiator flushing, coolant replacement, fan operation checks, thermostat service. Wheel Tire Service: Tire pressure checks, tire rotation, wheel bearing inspection and replacement, wheel bolt torque specifications. Electrical Troubleshooting Guides: Flowcharts and detailed guides for diagnosing common electrical faults. Technical Depth Depth: Comprehensive from basic checks to complete engine and transmission rebuilds. Suitable for DIY enthusiasts and professional mechanics. Diagnostic Tools Recommended: Basic hand tools, torque wrench, multimeter, feeler gauges, compression tester, specialized tools for certain engine components (as specified within the manual). 📊 Manual Specifications File Format File Format: Adobe PDF Searchability: Typically searchable PDF, allowing quick navigation to specific topics. Print Quality Print Quality: High resolution, suitable for printing individual pages or sections. Binding Type Binding Type: N/A (Downloadable PDF) Paper Type Paper Type: N/A (Digital Format) ⚙️ Engine Specifications Primary Engine Engine Type: 4-stroke, SOHC, 1-cylinder, liquid-cooled (often oil-cooled assist) Displacement: 376 cc (23.0 cu. in.) Bore X Stroke: 85.0 mm x 66.0 mm Compression Ratio: 9.2:1 (typical, verify with manual) Performance...