Model Codes:
LT-F400, LTF400, LT-F400F, LTF400F
Model Year Range:
2002-2007
Vehicle Type:
ATV (All-Terrain Vehicle)
Drive Type:
2x4, 4x4 (selectable)
Transmission Type Covered:
Manual Transmission
Manual Product Name:
Download Suzuki Eiger 400 LT-F400-400F LTF400 02-07 Manual Service Repair Manual PDF
Generation Name:
First Generation Eiger 400
Generation Years:
2002-2007
Atv Segment:
Mid-size utility ATV
Target User:
Recreational riders, farmers, hunters, light trail use
Competitors:
Yamaha Kodiak 400, Honda Rancher 400, Arctic Cat 400
Engine Type:
Reliable 4-stroke, SOHC, liquid-cooled engine
Transmission Type:
Smooth-shifting 5-speed manual transmission with reverse
Drive System:
Selectable 2WD/4WD system for versatile traction
Suspension:
Independent front suspension (A-arm) and Swingarm rear suspension for comfort and capability
Braking:
Powerful front and rear disc brakes
Engine:
Detailed overhaul, troubleshooting, specifications, tuning
Transmission:
Manual gearbox, clutch, drive shafts, differential, gearbox oil specifications
Chassis:
Frame inspection, repair, welding procedures, suspension mounting
Steering:
Handlebar assembly, steering column, tie rods, steering knuckle repair
Suspension:
Front and rear suspension components, shock absorbers, springs, bushings, alignment
Brakes:
Front and rear brake systems (hydraulic disc), brake pad replacement, fluid bleeding, master cylinder, caliper overhaul
Electrical:
Wiring diagrams, charging system (stator, regulator/rectifier), ignition system (CDI, spark plug), starter motor, battery, lighting, switches, fuses
Fuel System:
Carburetor (Mikuni BSR33) overhaul and adjustment, fuel tank, fuel pump, fuel lines, air filter
Lubrication:
Engine oil, gearbox oil, chassis grease points, lubrication schedule
Frame:
Frame integrity, repair, mounting points
Seats System:
Seat mounting, removal, upholstery care
Locks:
Ignition switch, steering lock (if applicable)
Lightning:
Headlight, taillight, brake light, indicator lights, wiring
Maintenance:
Routine service, oil changes, filter replacements, spark plug checks, brake adjustments
Troubleshooting:
Diagnostic charts for common problems, symptom-based solutions
Repair:
Step-by-step instructions for component disassembly, repair, and reassembly
Overhaul:
Complete engine and transmission rebuild procedures
Specifications:
Torque values, clearances, fluid capacities, electrical values
Wiring Diagrams:
Detailed electrical schematics for all systems
Depth:
Comprehensive (from basic maintenance to full engine and transmission rebuilds)
Target Audience:
DIY mechanics, professional technicians
Engine Type:
Four-stroke, SOHC, V-twin (Note: Eiger 400 typically uses a single cylinder, but V-twin engines were common in higher displacement models like King Quad. This manual covers the single-cylinder Eiger 400)
Engine Displacement:
376 cc
Bore X Stroke:
80.0 mm x 74.4 mm
Cooling System:
Liquid-cooled
Valve Train:
SOHC, 4-valve
Ignition:
Electronic ignition (CDI)
Horsepower Estimate:
Approx. 23-25 HP (at the crankshaft)
Torque Estimate:
Approx. 21-23 lb-ft
Carburetor Type:
Mikuni BSR33, Single Carburetor
Fuel Type:
Unleaded gasoline (87 octane recommended)
Fuel Tank Capacity:
3.2 US gal (12 L)
Type:
5-speed, constant mesh with reverse
Gear Ratios:
Detailed ratios for each gear available in manual
Clutch Type:
Wet, multi-plate
Drive Select:
2WD/4WD selector, shaft drive to front and rear differentials
Transmission Oil Capacity:
Approx. 1.8 L (1.9 US qt)
Transmission Oil Type:
Suzuki Super Gear Oil API GL-4 SAE 80W-90 (or equivalent)
Engine Oil Change:
Every 1,000 km or 6 months (whichever comes first)
Oil Filter Replacement:
Every 1,000 km or 6 months (with oil change)
Air Filter Cleaning:
Every 500 km (more frequently in dusty conditions)
Spark Plug Inspection:
Every 1,000 km
Valve Clearance Check:
Every 2,000 km or 12 months
Brake Fluid Check:
Every 6 months (flush and replace every 2 years)
Engine Oil Type:
SAE 10W-40 API SE, SF, or SG (or equivalent)
Engine Oil Capacity:
1.6 L (1.7 US qt) without filter change; 1.7 L (1.8 US qt) with filter change
Brake Fluid Type:
DOT 3 or DOT 4 hydraulic brake fluid
Carburetor Fouling:
Can occur due to infrequent use or poor fuel quality, leading to starting issues or rough running.
Suspension Bushings:
Wear of A-arm bushings can lead to play and uneven tire wear.
4Wd Engagement:
Actuator or linkage issues can sometimes prevent smooth 4WD engagement, requiring diagnosis.
Starter Clutch:
In some cases, the starter clutch can wear, causing slipping or inability to engage the starter motor properly.
Oil Filter Example:
Suzuki Part Number: 16510-07H00 (or equivalent aftermarket)
Spark Plug Example:
NGK CR7E (or equivalent)
Manufacturer:
Suzuki Motor Corporation (Japan)
Legacy:
Suzuki has a long history in powersports, including motorcycles and ATVs, known for reliable engines and practical designs.
Predecessors:
LT-F300 King Quad (earlier models)
Market Introduction:
The Eiger 400 was introduced to offer a more powerful and capable utility ATV than its predecessors.
Key Updates During Generation:
Minor cosmetic updates and potential refinement of the 4WD system over the years.
Production Location:
Likely manufactured in Japan or through Suzuki's global manufacturing network.
Discontinuation Context:
The Eiger 400 line was eventually succeeded by the King Quad 400 models, which often featured more advanced features or different engine configurations.
