Target Audience:
Utility users, farmers, hunters, and recreational riders needing a dependable mid-size ATV
Class:
Mid-size utility ATV
Key Advantage:
Reputation for reliability, durable frame, selectable 4WD, and efficient liquid cooling in its class
Configuration Choice:
Offered in both 2WD and 4WD to suit different budgets and tasks
Engine:
Liquid-cooled 376 cc SOHC single-cylinder engine
Drivetrain:
Selectable 4WD on LT-A400F models
Construction:
Sturdy frame built for demanding tasks
Cooling:
Liquid cooling for consistent performance
Models Covered:
All Suzuki Eiger 400 trim levels, 2002-2007
Systems Covered:
Engine, transmission and drivetrain, electrical, chassis and suspension, brakes
Content Included:
Maintenance schedules, troubleshooting guides, repair procedures, specifications, wiring schematics
Manual Type:
Factory service manual
Audience:
Owners and professional technicians
Delivery Method:
Instant digital download
Page Count:
N/A - not specified in the product description
Engine Mechanical:
Cylinder head, pistons, crankshaft, valve service, timing procedures
Lubrication System:
Oil pump, filter, and cooling system service
Fuel System:
Carburetor service, fuel pump, throttle body, and air intake procedures
Transmission:
Automatic transmission (CVT) servicing, clutch inspection and rebuild
Final Drive:
Drive shaft, differential, and 4WD system service
2WD/4WD System:
Selectable 4WD actuator diagnosis and repair on LT-A400F models
Ignition System:
CDI unit, ignition coil, spark plug testing and troubleshooting
Charging System:
Battery, regulator/rectifier, and alternator/stator testing
Starting System:
Starter motor, starter relay, and starting circuit diagnostics
Wiring Schematics:
Complete color wiring diagrams for all model years
Switches & Sensors:
Testing procedures for switches, sensors, and lighting circuits
Suspension:
Front and rear suspension inspection, disassembly, and rebuild
Steering:
Steering system service and alignment
Wheels & Tires:
Wheel inspection, tire service, and torque specifications
Brakes:
Front and rear brake service, pad and shoe replacement, bleeding procedures
Frame & Body:
Frame inspection, body panel and fender removal and installation
Maintenance Schedules:
Routine maintenance intervals and lubrication points
Troubleshooting:
Symptom-based diagnostic guides for engine, electrical, and drivetrain faults
Torque Specifications:
Fastener torque values throughout all procedures
Special Tools:
Required service tools listed per procedure
Technical Depth:
Full factory-level detail: step-by-step teardown, inspection limits, and reassembly
Parts Information:
Part numbers, exploded views, and wear limits referenced in procedures
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:
Liquid-cooled single-cylinder, SOHC, 4-stroke
Valvetrain:
Single overhead camshaft (SOHC)
Horsepower:
Estimated 23-25 hp
Torque Character:
Robust low-end torque suited to challenging terrain
Fuel Delivery:
Carbureted
Fuel Tank Capacity:
N/A - not specified for this model
Transmission Type:
Automatic transmission (CVT with high/low range and reverse)
Optional Transmission:
5-speed manual shift version available on some Eiger 400 variants
Drive System:
2WD standard on LT-A400; selectable 4WD on LT-A400F
Shift Pattern:
Automatic CVT, no clutch operation required by rider
Range Selection:
High / Low / Reverse range selector
Brakes:
Front and rear hydraulic disc brakes
Traction:
Selectable 4WD on LT-A400F for improved traction on difficult terrain
Lighting:
Headlight and taillight for visibility
Frame Construction:
Sturdy welded steel frame for occupant protection and durability
Foot Protection:
Full floorboards with footpegs
Crash Test Ratings:
N/A - ATVs are not assigned crash test ratings
Instrument Cluster:
Analog speedometer with indicator warning lights
Indicator Lights:
Neutral, reverse, oil pressure, and 4WD indicators
Audio System:
N/A - not equipped; ATV platform has no factory audio system
Driver Assistance:
N/A - not applicable to this ATV model
Engine Oil:
Initial break-in change at 20 hours / 1 month, then every 6 months or 600 miles
Oil Filter:
Replace with oil change per scheduled maintenance
Valve Clearance:
Inspect periodically per maintenance schedule
Air Filter:
Inspect and clean frequently, especially in dusty conditions
Engine Oil:
SAE 10W-40 API SF/SG (or higher) JASO MA motorcycle oil
Final Gear Case Oil:
Hypoid gear oil SAE 80W-90 API GL-5
Coolant:
Suzuki long-life coolant / high-quality ethylene glycol antifreeze
CVT Belt:
Drive belt is a common wear item; inspect for cracks and glazing
Brake Pads:
Regular inspection and replacement due to off-road use
Carburetor:
May require cleaning if stored with fuel in the system
Manufacturer:
Suzuki Motor Corporation, Japan - long-established motorcycle and ATV producer
ATV Lineage:
Suzuki pioneered the quad-style ATV with the 1982 LT125 and built a strong utility ATV range
Introduction:
Eiger 400 introduced in 2002 as Suzuki's mid-size utility ATV
Model Range:
Offered as LT-A400 (2WD) and LT-A400F (4x4), in manual-shift and automatic versions
Production Run:
First generation produced 2002 through 2007
Production Location:
N/A - not specified for this model
