Model Designations:
LT-A400, LT-A400F, LT-F400, LT-F400F
Model Variant As:
Automatic Transmission, 2WD
Model Variant As 4Wd:
Automatic Transmission, 4WD
Model Variant Fs:
Manual Transmission, 2WD
Model Variant Fs 4Wd:
Manual Transmission, 4WD
Chassis Code Prefix:
LT-A400, LT-F400
Generation Name:
Second Generation KingQuad 400
Product Type:
High-quality, comprehensive workshop service and repair manual
Target Audience:
Suzuki KingQuad 400 owners, DIY mechanics, independent repair shops
Value Proposition:
Cost-effective alternative to dealer service, enabling self-sufficient maintenance and repair
Differentiation:
Improves upon standard manuals with enhanced PDF features (bookmarks, search, index) for better usability
Dealer Equivalence:
Contains the same information used by authorized Suzuki dealerships
Completeness:
Covers all aspects from basic maintenance to complete rebuilds
Accessibility:
Instant download, printable pages for garage/workshop use
Primary Focus:
2008-2009 Suzuki KingQuad 400 models (LT-A400/F, LT-F400/F)
Extended Applicability:
Minor changes through 2014 models
Type:
Factory Service Manual (FSM) / Workshop Repair Manual
Format:
PDF (Searchable Text, Bookmarks, Index)
Engine:
Engine overhaul, tuning, troubleshooting, specifications
Transmission:
Automatic (CVT) and Manual transmission repair, maintenance, fluid changes
Driveline:
Front and rear driveshaft, differentials, axle maintenance and repair
Suspension:
Front forks, rear shock absorber, linkages, adjustments, maintenance
Brakes:
Hydraulic brake system inspection, service, pad replacement, bleeding
Steering:
Steering system components, tie rods, bushings, alignment
Electrical:
Ignition system, charging system (stator, rectifier), starter motor, lighting, wiring diagrams
Body Accessories:
Body panels, fenders, seat, racks, trim, accessories installation and repair
Fuel System:
Carburetor (or EFI if applicable for later models covered by extension), fuel pump, fuel tank, lines
Cooling System:
Radiator, fan, coolant, hoses, thermostat (if applicable)
Maintenance:
Scheduled maintenance, lubrication points, fluid changes, filter replacements
Troubleshooting:
Diagnostic procedures for common issues, error codes, symptom-based diagnosis
Repair:
Step-by-step repair instructions for all major components and systems
Rebuild:
Complete engine and transmission tear-down and rebuild procedures
Installation:
Instructions for installing aftermarket parts or accessories (implied by scope)
Calibration Adjustment:
Carburetor adjustment, valve clearance adjustment, clutch adjustment
Depth:
Comprehensive, dealer-level service and repair information
Detail Level:
Detailed diagrams, part breakdowns, torque specifications, and procedures
Diagnostic Capability:
Advanced diagnostics for electrical and mechanical issues
Engine Type:
4-stroke, SOHC, 2-valve
Engine Displacement:
376 cc (23.0 cu. in.)
Bore X Stroke:
81.0 mm x 72.0 mm (3.19 in x 2.83 in)
Compression Ratio:
9.3 : 1
Horsepower:
Approximately 25-27 HP (Estimate based on similar models)
Torque:
Not explicitly stated in product info, but significant low-end torque for off-road application.
Fuel Delivery:
Fuel injection (EFI) for 400F models, Carbureted for 400 models (earlier spec, though product mentions EFI in tags, this manual likely covers carbureted primarily with later models being similar).
Fuel Type:
Unleaded gasoline
Fuel Tank Capacity:
4.6 L (1.2 US gal) - Standard for this generation.
Type:
Automatic (CVT with V-belt) for LT-A models, 5-speed manual with reverse for LT-F models
Optional Transmission:
N/A - Variants are based on transmission and drive type.
Cvts Features:
Engine braking, high/low range selection (typical for KingQuad)
Manual Features:
Standard clutch operation, reverse gear
Transmission Fluid:
Refer to manual for specific Suzuki transmission fluid or equivalent SAE 10W-40 API SG or higher (common for this era).
Oil Change Interval:
Refer to manual; typically every 1000 km or 6 months.
Air Filter Cleaning:
Regular inspection and cleaning, especially in dusty conditions.
Spark Plug Check:
Intervals for checking and replacing as per manual recommendations.
Valve Clearance Adjustment:
Refer to manual for mileage/time intervals, typically around 2000-4000 km.
Engine Oil Type:
SAE 10W-40 API SG or higher (e.g., Suzuki Performance Oil 4T or equivalent).
Engine Oil Capacity:
Approx. 2.2 L (2.3 US qt) without filter, 2.4 L (2.5 US qt) with filter change.
Coolant Type:
Ethylene glycol-based antifreeze coolant, 50/50 mix with distilled water.
Brake Fluid Type:
DOT 3 or DOT 4 hydraulic brake fluid.
Common Wear Items:
Brake pads, tires, drive belts (CVT), suspension bushings, wheel bearings.
Potential Electrical:
Stator or rectifier failures can occur over time, as with many ATVs. Charging system checks are important.
Carburetor Issues:
Clogged jets or pilot circuits can affect performance, especially with ethanol fuels or infrequent use.
Manufacturer:
Suzuki Motor Corporation, known for reliable and capable off-road vehicles.
Kingquad Lineage:
The KingQuad 400 is a descendant of Suzuki's long-standing ATV development, offering a balance of performance and utility.
Second Gen Updates:
The 2008 update brought revised styling and potential minor mechanical refinements over earlier generations.
Production Period:
Continuously produced with updates across multiple generations, with this manual covering a key period.