Target Audience:
Farm, ranch, hunting, and recreational ATV users wanting a dependable mid-size 4x4
Class:
Mid-size utility ATV segment
Competitive Advantage:
Suzuki's proven automatic transmission with engine braking and a durable 376cc four-stroke engine
Drivetrain:
Selectable 2WD/4WD with automatic CVT transmission
Engine:
376cc air/oil-cooled SOHC single-cylinder four-stroke
Riding Aids:
Shaft drive, engine braking system
General Information:
Serial numbers, specifications, torque values, special tools
Maintenance:
Scheduled service tables, inspection and adjustment procedures
Engine:
Top-end and bottom-end service, cylinder head, pistons, crankshaft
Fuel System:
Carburetor service, fuel tank, throttle, and air intake
Suspension:
Front and rear suspension, shock absorbers, steering
Drivetrain:
CVT transmission, transfer case, front/rear driveshafts, final gear cases
Brakes:
Front disc and rear brake service, pad and shoe replacement
Electrical:
Wiring diagrams, starting and charging systems, ignition
Body and Accessories:
Body panels, racks, seat, and accessory service
Step-by-Step Repair:
Full disassembly and reassembly procedures with torque specs
Diagnostics:
Troubleshooting charts for engine, electrical, and drivetrain faults
Routine Servicing:
Oil changes, valve clearance, filter service, cable adjustment
Engine Rebuild:
Complete engine rebuild coverage from light bulb replacement to full teardown
Specifications:
Wear limits, torque specifications, and special tool listings
Audience Level:
Same information used by professional technicians and mechanics
Detail Level:
Workshop-grade procedures with photos and exploded diagrams
Parts Information:
Component part numbers and exploded views for reassembly reference
Wiring Diagrams:
Complete electrical schematics included
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:
376cc SOHC 4-stroke single-cylinder, air/oil-cooled
Bore x Stroke:
82.0 mm x 71.2 mm
Fuel System:
Mikuni BST33 carburetor
Starting System:
Electric start with recoil backup
Ignition:
Digital electronic ignition (CDI)
Cooling:
Air-cooled with oil cooler
Factory Ratings:
N/A - not published in the manual listing
Crash Test Ratings:
N/A - ATVs are not crash-tested like road vehicles
Active Features:
Engine braking system, engine stop switch, dual hydraulic brakes
Passive Features:
Full-length floorboards, front bumper and racks
Braking:
Front dual disc brakes, rear sealed drum/brake system
Infotainment:
N/A - utility ATV, no audio or infotainment system
Instrumentation:
Analog speedometer with indicator lamps
Ignition:
Digital CDI ignition system
Driver Assistance:
N/A - not equipped on this model
Scheduled Maintenance:
Factory maintenance interval tables included in the manual
Engine Oil:
SAE 10W-40 API SF/SG or higher (SEvere-use intervals shortened)
Valve Clearance:
Periodic inspection and adjustment procedures covered
Air Filter:
Foam element; clean/replace per interval table
Common Wear Items:
CVT belt, brake pads, spark plug, wheel bearings
Manufacturer:
Suzuki Motor Corporation, Japan
Model Evolution:
Eiger 400 introduced in 2002 as a mid-size utility ATV alongside the 4x4 manual-shift LT-F400; produced through 2007
Production Location:
Suzuki of America Mfg., Kosai/Japan and US assembly for North American market
Model Line:
LT-A400F 4x4 Auto and LT-F400 4x4 manual variants (manual covers LT-A400/400F)
