🏷️ Basic Information

Make:

Suzuki

Model:

Eiger 400

Model Code:

LT-A400

Product Type:

Service Manual / Repair Manual

Applicable Years:

2002, 2003, 2004, 2005, 2006, 2007

Chassis Codes:

LT-A400F (4x4), LT-A400 (2WD)

Engine Codes:

F400

👋 Introduction

Segment:

Mid-size utility ATV

Target Audience:

Recreational riders, utility users, farmers, hunters.

Key Competitors:

Yamaha Grizzly 350/400, Honda Rancher 350/400, Polaris Sportsman 400.

Engine Type:

Liquid-cooled, SOHC, 4-stroke single-cylinder.

Transmission Type:

Automatic (CVT) with high/low range and reverse.

Drive System:

Shaft drive, selectable 2WD/4WD.

Suspension Type:

Independent front suspension (IFS) and solid rear axle with swingarm (specifics vary slightly by year/trim but generally IFS front).

📋 Manual Details

General Coverage:

Complete factory repair and service information for the Suzuki Eiger 400 (LT-A400) ATVs.

Model Variants Covered:

2WD (LT-A400) and 4x4 (LT-A400F) models.

Transmission Coverage:

Automatic Transmission (CVT)

Total Pages:

424

Type:

Factory Repair Manual

Language:

English

Format:

PDF Download

File Features:

Searchable text, clickable chapters, no printing restrictions, no saving/burning restrictions.

📖 Manual Coverage

Engine:

Engine disassembly, assembly, lubrication, cooling system, cylinder head, piston, crankshaft, valve train (camshaft, valves), ignition system, starting system.

Fuel System:

Fuel injection (EFI) system, fuel pump, injectors, throttle body, fuel tank, fuel lines, fuel filter, carburation (if applicable for certain years/markets, though primarily EFI).

Transmission:

Automatic transmission (CVT) operation, maintenance, disassembly, assembly, clutch, drive system, driven system, gearshift mechanism, reverse gear.

Drivetrain:

Front drive shaft, rear drive shaft, differentials (front and rear), CV joints, wheel hubs, propeller shafts, U-joints.

Suspension:

Front suspension (A-arms, struts, shocks), rear suspension (swingarm, shocks), steering system, linkages.

Brakes:

Front and rear brake system, hydraulic lines, master cylinders, calipers, brake pads, brake discs, parking brake, brake fluid specifications.

Electrical:

Battery, charging system (stator, rectifier/regulator), starting system (starter motor, starter solenoid), lighting system (headlights, taillights, brake lights), ignition system, switches, wiring diagrams, sensors, ECU.

Body And Frame:

Frame construction, body panels, fenders, seat, handlebars, racks, bumpers, plastic components.

Cooling System:

Radiator, cooling fan, coolant type and capacity, hoses, thermostat.

Maintenance:

Regular inspection and maintenance schedule, fluid changes (engine oil, coolant, brake fluid, transmission fluid), filter replacement, lubrication points.

Troubleshooting:

Diagnostic procedures for common problems, symptom analysis, electrical system troubleshooting, engine performance issues, transmission faults.

Repair:

Complete tear down and rebuild procedures for all major components and systems.

Technical Specifications:

Torque specifications for critical fasteners, engine specifications, chassis dimensions, electrical system data.

Illustrations Diagrams:

Detailed diagrams and photographs illustrating disassembly, assembly, and component identification.

Part Identification:

Identification of specific parts and their relationships within assemblies.

Depth:

Comprehensive, from basic maintenance to full engine and transmission rebuilds. Suitable for DIY enthusiasts and professional technicians.

📊 Manual Specifications

Format Type:

PDF

Searchability:

Yes

Print Restriction:

None

Binding:

N/A (Digital Download)

Paper Quality:

N/A (Digital Download)

Navigation:

Clickable chapters for easy navigation.

⚙️ Engine Specifications

Type:

4-stroke, SOHC, 4-valve, single-cylinder

Displacement:

376 cc (23.0 cu. in.)

Bore X Stroke:

81.0 mm x 72.4 mm (3.19 in. x 2.85 in.)

Cooling System:

Liquid-cooled

Compression Ratio:

9.2:1

Horsepower:

Approximately 25-28 HP (estimated, as exact figures are not always published by Suzuki for ATVs)

Torque:

Approximately 24-27 lb-ft (estimated)

Fuel Delivery:

Electronic Fuel Injection (EFI)

Fuel Type:

Unleaded gasoline

Fuel Tank Capacity:

3.6 US gal. (13.7 L)

Ignition System:

Electronic ignition (CDI)

Starting Method:

Electric starter with auxiliary recoil starter (kick start).

🔧 Transmission

Type:

Automatic Continuously Variable Transmission (CVT)

Gear Selection:

High (H), Low (L), Neutral (N), Reverse (R), Park (P)

Drive System Engagement:

Torque-sensing automatic transmission, handlebar-mounted push-button 2WD/4WD selector.

Fluid Type:

Suzuki recommended SAE 10W-40 API SE or SF engine oil for the transmission and engine (refer to manual for specific recommendations).

📐 Dimensions

Overall Length:

80.1 in. (2035 mm)

Overall Width:

44.5 in. (1130 mm)

Overall Height:

43.1 in. (1095 mm)

Wheelbase:

50.0 in. (1270 mm)

Ground Clearance:

7.1 in. (180 mm)

Curb Weight:

Approx. 584 lbs (265 kg) for 4x4 model

Towing Capacity:

1000 lbs (450 kg)

Rack Capacity Front:

44 lbs (20 kg)

Rack Capacity Rear:

176 lbs (80 kg)

🛡️ Safety Features

Crash Test Ratings:

N/A (ATVs are not subject to the same crash testing standards as passenger vehicles)

Braking System:

Hydraulic disc brakes (front and rear) with parking brake.

Drive System:

Selectable 2WD/4WD for enhanced traction.

Lighting:

Dual headlights, taillight, and brake light for visibility.

Body Protection:

Durable plastic body panels, front bumper, and rear grab bar.

💡 Technology Features

Features:

Basic instrumentation: Speedometer, odometer, trip meter, fuel gauge, neutral indicator, reverse indicator, 2WD/4WD indicator, engine hour meter (on some models/years).

Features:

Selectable 4WD system for improved off-road traction.

Features:

N/A (No electronic connectivity features like Bluetooth or GPS are standard on this model).

System:

Electronic Fuel Injection (EFI) system for optimized fuel delivery and performance (on later models).

🔧 Maintenance

Engine Oil Change:

Every 1000 km (600 miles) or 6 months, whichever comes first (refer to manual for exact intervals).

Air Filter Cleaning:

Inspect every 200 km (120 miles), clean or replace as needed. More frequent cleaning in dusty conditions.

Spark Plug Inspection:

Every 1000 km (600 miles) or 6 months.

Valve Clearance Check:

Every 2000 km (1200 miles) or 12 months.

Engine Oil Type:

SAE 10W-40 API SE or SF (or higher classification).

Engine Oil Capacity:

Approx. 2.4 L (2.5 US qt.) with oil filter change.

Coolant Type:

Suzuki Super Long Life Coolant or equivalent ethylene glycol-based antifreeze.

Coolant Capacity:

Approx. 1.4 L (1.5 US qt.)

Brake Fluid Type:

DOT 3 or DOT 4.

Gear Oil Type:

Refer to manual for specific gear oil requirements (typically SAE 80W-90 GL-5 for final drive).

Common Problems:

CVT belt wear/failure, starter motor issues, some electrical connector corrosion, occasional fuel pump issues.

Maintenance Tips:

Regular cleaning of air filter, proper CVT belt care, timely fluid changes are crucial for longevity.

📚 Vehicle History

Suzuki Atv Legacy:

Suzuki has a long and respected history in ATV manufacturing, known for its durable and capable machines.

Eiger Introduction:

The Eiger 400 was introduced to offer a competitive mid-size utility ATV with a focus on reliability and capability.

Key Updates:

The Eiger 400 saw updates over its production run, notably the adoption of EFI starting around 2005 for improved performance and efficiency.

Production Period:

2002-2007

Manufacturing Location:

Japan

🏆 Awards & Recognition

Industry Awards:

No specific widely publicized awards are associated with this particular model, but it was generally well-regarded in its class for its reliability.