Model Variant:
LTF400 / LTF400F 4x4 and 2WD versions
Production Years Covered:
2002, 2003, 2004, 2005, 2006, and 2007
Target Audience:
Utility ATV buyers including farmers, ranchers, hunters, and recreational trail riders
Competitive Advantage:
Suzuki build quality and proven 376cc four-stroke engine with available 4WD and automatic clutch options at a mid-size price
Key Features:
376cc air/oil-cooled single, selectable 2WD/4WD, shaft drive, independent rear suspension on later models, electric start
Engine:
Complete teardown, inspection, and rebuild procedures for the 376cc single-cylinder engine
Fuel & Carburetion:
Carburetor disassembly, cleaning, jetting, and adjustment specifications
Cooling:
Oil cooler and air cooling system service
Lubrication:
Oil system, pump, and filtration service procedures
Transmission & Drivetrain:
5-speed transmission, clutch, CVT (V-belt) system, and gear selector service
Final Drive:
Shaft drive, differential, and 4WD engagement system service
Suspension:
Front suspension and rear suspension removal, inspection, and rebuild
Brakes:
Front and rear brake service, pad replacement, and hydraulic system bleeding
Wheels & Tires:
Wheel, tire, and axle service
Steering:
Steering system inspection and adjustment
Electrical:
Ignition, charging, starting, lighting, and switch testing with wiring diagrams
Chassis:
Bolt torque specifications and chassis measurements
Procedure Detail:
Step-by-step factory procedures with torque specs and special tool callouts
Diagrams:
Exploded parts views, wiring diagrams, and measurement illustrations
Specifications:
Complete factory service specifications and wear limits
Diagnostics:
Troubleshooting charts for engine, drivetrain, and electrical faults
Parts Illustrations:
Exploded views with factory part references for component identification
Fastener Specs:
Torque specifications listed for all major assemblies
Consumables:
Recommended fluids, sealants, and gasket specifications
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
Primary Engine:
376cc single-cylinder four-stroke, air/oil-cooled SOHC
Bore x Stroke:
Approximately 82.0 mm x 71.2 mm (factory spec)
Performance:
Utility-focused torque output tuned for work and trail use; not a sport-tuned engine
Fuel System:
Keihin carburetor
Starting:
Electric start with recoil backup
Ignition:
DC-CDI electronic ignition
Standard Transmission:
5-speed constant mesh with automatic clutch
Optional Transmission:
Semi-automatic (V-belt CVT automatic) on Eiger Automatic models
Drive System:
Shaft drive with selectable 2WD/4WD
Features:
Automatic clutch requires no hand lever; low-range gearing on select models for heavy loads
Wheelbase:
Approximately 1,285 mm (50.6 in)
Overall Length:
Approximately 2,080 mm (81.9 in)
Curb Weight:
Approximately 265 kg (584 lb) for 4x4 model
Ground Clearance:
See factory specifications in manual; varies by model year
Crash Test Ratings:
N/A - ATVs are not assigned government crash test ratings
Active Features:
Reliable hydraulic disc brakes, engine braking, and predictable handling characteristics
Passive Features:
Front bumper, footwell guards, and durable frame construction
Owner Safety:
Manual includes factory safety precautions and warning procedures for all service work
Audio System:
N/A - utility ATV, no factory audio system
Instrumentation:
Speedometer, odometer, indicator lights, and neutral/reverse indicators
Lighting:
Dual front headlights with high/low beam and rear taillight
Driver Assistance:
N/A - no electronic driver assistance systems on this model
Engine Oil:
SAE 10W-40 API SF/SG or higher motorcycle oil; replace every 100 hours or annually
Oil Filter:
Replace with every oil change per factory schedule
Air Filter:
Inspect and clean frequently in dusty conditions; replace as needed
Final Drive / Differential Oil:
Change at scheduled intervals per factory maintenance chart
Valve Clearance:
Inspect at recommended intervals; manual provides full adjustment procedure
Spark Plug:
Inspect/clean regularly; standard service replacement per manual spec
Brake System:
Inspect pads and fluid at every service interval
Known Issues:
Common wear items include CVT belt (Automatic models), brake pads, and carburetor tuning after storage
Manufacturer:
Suzuki Motor Corporation, Japan - pioneer in four-wheel ATVs with the original QuadRunner in the 1980s
Model Evolution:
The Eiger LTF400 was introduced in 2002 as a mid-size utility ATV and ran through 2007 before evolving into later KingQuad models
Production Location:
Suzuki production facilities (Japan)
Model Position:
Positioned between the smaller Ozark LT-F250 and the Vinson 500 in Suzuki's ATV lineup
