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.
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:
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.
Covered Years:
2002, 2003, 2004, 2005, 2006, 2007
Covered Models:
LT-A400F Eiger 4x2 Automatic, LT-A400F Eiger 4x4 Automatic
Page Count:
300-400 (estimated, typical for this era and vehicle 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).
File Format:
Adobe PDF, typically searchable for quick navigation
Delivery Method:
Instant digital download
Binding:
Digital (downloadable PDF)
Engine Systems:
Engine removal/installation, lubrication, cooling, cylinder head, piston, crankshaft, camshaft, valve timing, carburetor, 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 system, fuel pump, fuel system diagnostics.
Electrical System:
Wiring diagrams, battery, charging system (stator, rectifier/regulator), starting system, lighting, instrumentation, switches, fuses, relays, electrical fault troubleshooting.
Suspension Steering:
Front and rear suspension systems, shock absorbers, springs, control arms, bushings, steering 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.
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:
Flowcharts and detailed guides for diagnosing common electrical faults.
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).
Parts Information:
Includes parts catalog information covering component identification for covered models.
File Format:
PDF (searchable, bookmarked, zoomable)
Compatibility:
Windows, macOS, Linux, iOS, and Android — any device with a PDF reader
Requirements:
A PDF reader application (e.g. Adobe Acrobat Reader, free)
Searchability:
Fully text searchable for fast lookup of any topic
Print Quality:
High-resolution digital pages, printable at full clarity
Binding Type:
N/A — digital download, no physical binding
Paper Type:
N/A — digital download, no physical paper
Engine Type:
4-stroke, SOHC, 1-cylinder, liquid-cooled (with oil-cooling 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)
Horsepower:
Approximately 25-28 HP (verify with manual)
Torque:
Approximately 22-24 lb-ft (verify with manual)
Fuel Delivery:
Carburetor (Mikuni BSR33)
Fuel Type:
Unleaded gasoline, 87 octane or higher
Fuel Tank Capacity:
3.1 US gal (11.7 L)
Oil Type:
SAE 10W-40, API SE, SF, SG, SH, SJ or higher (verify with manual for specific rating)
Oil Capacity With Filter:
2.2 US qt (2.1 L)
Cooling Method:
Liquid-cooled (with fan)
Coolant Type:
Permanent antifreeze solution, 50/50 mix of ethylene glycol and distilled water
Engine Oil Change:
Every 100 hours or 1 year (whichever comes first), or more frequently in severe use.
Air Filter Cleaning:
Every 20 hours, or more frequently in dusty conditions.
Spark Plug Check:
Every 100 hours or 1 year. Replace as needed based on condition.
Valve Clearance Check:
Every 100 hours or 1 year.
Brake Fluid:
DOT 3 or DOT 4 hydraulic brake fluid.
Engine Oil:
SAE 10W-40, API SJ or higher
Final Drive Fluid:
SAE 80W API GL-5 hypoid gear oil
Common Issues:
Carburetor clogging/adjustment problems, CV joint wear, starter motor solenoid problems, and cam chain tensioner noise on some models. The manual details checks and fixes for these.
Maintenance Tips:
Regular cleaning and proper storage prevent many common issues, especially carburetor and electrical connection problems in wet environments. The manual provides specific cleaning procedures.
