Positioning:
The Suzuki LT-Z400 Quad Sport is a highly regarded sport ATV known for its performance, handling, and reliability. This manual targets owners and independent repair shops looking to perform comprehensive maintenance and repairs.
Competitors:
Competes with models like the Yamaha YFZ450, Kawasaki KFX450R, and Honda TRX450R in the performance sport ATV segment.
Manual Value Proposition:
Enables significant cost savings on repairs by empowering users to perform their own maintenance and repairs with professional guidance.
Ease Of Use:
Designed with clear, step-by-step instructions and illustrations for user-friendliness.
Comprehensive Coverage:
Yes
Model Variants Covered:
All Models, Engines, Trim, and Transmission Types
Estimated Page Count:
Refer to actual downloaded PDF (typically 300+ pages for this level of detail)
Manual Type:
Complete Workshop Service and Repair Manual
Accessibility:
Downloadable to PC, MAC, Tablets, Smartphones
Software Requirement:
Adobe Reader (free download available)
Engine System:
Complete overhaul, assembly, disassembly, tuning, diagnostics
Fuel System:
Carburetor tuning and rebuilding, fuel pump, fuel lines, fuel tank
Ignition System:
CDI unit, spark plugs, ignition timing, coil testing
Cooling System:
Radiator, fan, hoses, coolant types and capacities
Exhaust System:
Muffler, exhaust pipe, gaskets, inspection
Transmission System:
Clutch operation, gear shifting, maintenance, troubleshooting
Drivetrain System:
Chain drive, sprockets, axle, wheel hubs, maintenance
Suspension System:
Front and rear shocks, A-arms, bushings, adjustment, lubrication
Braking System:
Hydraulic brake system, calipers, master cylinder, brake pads, fluid types and bleeding procedures
Steering System:
Handlebars, steering stem, tie rods, lubrication, adjustment
Electrical System:
Wiring diagrams, battery, starter, lighting, charging system, fuses
Body And Frame:
Plastics, seat, body panels, frame inspection and repair
Troubleshooting Guides:
Extensive diagnostics for common and uncommon problems
Routine Maintenance:
Oil changes, filter replacements, chain adjustments, lubrication points
Component Overhaul:
Complete engine, transmission, and suspension rebuild procedures
Part Replacement:
Step-by-step guides for replacing all major and minor components
Specifications Data:
Torque values, clearances, tolerances, fluid capacities
Depth:
Comprehensive from basic maintenance to full engine rebuilds and complex diagnostics
Visual Aids:
Step-by-step instructions with detailed pictures and diagrams
Engine Type:
4-stroke, DOHC, 4-valve, liquid-cooled single-cylinder
Displacement:
398 cc (24.3 cu in)
Bore X Stroke:
90.0 mm x 78.0 mm (3.54 in x 3.07 in)
Compression Ratio:
11.3:1
Horsepower Estimate:
Approx. 40-45 HP (variations by specific model year and tuning)
Torque Estimate:
Approx. 30-35 lb-ft (variations by specific model year and tuning)
Carburetor:
Mikuni BSR36, single
Fuel Capacity:
2.6 US gal (9.8 L)
Oil Type:
API SG or SH, SAE 10W-40, JASO MA
Oil Capacity With Filter:
1.7 US qt (1.6 L)
Starter:
Electric starter
Engine Oil Change:
Every 20 hours of operation or monthly, whichever comes first
Air Filter Cleaning:
Every 10 hours of operation or as needed in dusty conditions
Spark Plug Inspection:
Every 100 hours of operation
Valve Clearance Check:
Every 100 hours of operation
Chain Lubrication Adjustment:
Every 10-15 hours of operation
Engine Oil Specification:
API SG or SH, SAE 10W-40, JASO MA
Brake Fluid Specification:
DOT 3 or DOT 4
Coolant Specification:
Suzuki Super Long Life Coolant or equivalent (50/50 mix of ethylene glycol and deionized water)
Common Wear Items:
Chain and sprockets, wheel bearings, brake pads, and suspension bushings are common wear items that may require replacement over time. Refer to manual for specific inspection procedures.
Carburetor Tuning:
Proper carburetor tuning is crucial for optimal performance and can be a common area of adjustment.