Segment:
High-performance sport ATV
Era:
Late 1980s / Early 1990s era of aggressive sport quad development
Competitors:
Honda TRX250R, Yamaha Warrior 250, Kawasaki Tecate 250
Performance Focus:
Engineered for speed, handling, and aggressive riding
Technical Innovation:
Often featured advanced suspension and powerful two-stroke engines for its time
Utility:
Essential for maintaining peak performance and addressing mechanical issues on this specialized vehicle
Years Covered:
1987, 1988, 1989, 1990, 1991, 1992
Specific Models Covered:
Suzuki LT250R QUAD RACER
Estimated Page Count:
High (Comprehensive factory documentation, likely 500+ pages, typical for full service manuals)
Type:
Factory Service and Repair Workshop Manual
Accessibility:
Instant Download
Engine:
Complete engine overhaul, rebuild, tuning, specifications, diagnostics
Transmission:
Clutch, gearbox, drive chain, final drive maintenance and repair
Fuel System:
Carburetor tuning, cleaning, rebuilding; fuel tank, lines, petcock
Cooling System:
Radiator, hoses, coolant flow, fan operation
Ignition System:
CDI, spark plug, coil, timing specifications
Electrical System:
Wiring diagrams, lighting, charging system, battery, starter
Suspension:
Front telescopic forks (including adjustment), rear mono-shock absorber (linkage, adjustment)
Brakes:
Front and rear hydraulic disc brake systems, calipers, master cylinders, fluid specifications
Steering:
Handlebars, steering stem, bearings, tie rods
Frame And Bodywork:
Chassis inspection, body panel removal and installation, plastics
Wheels And Tires:
Tire pressure, wheel bearing maintenance, rim specifications
Maintenance:
Routine service, lubrication, inspections, adjustments
Repair:
Component replacement, component repair, detailed step-by-step instructions
Troubleshooting:
Diagnostic charts, symptom-based problem solving, common fault identification
Rebuilds:
Full engine rebuild, transmission rebuild, suspension rebuild
Diagnostics:
Electrical system diagnostics, mechanical system diagnostics
Specifications:
Torque values, clearances, fluid capacities, electrical resistance
Depth:
Comprehensive factory-level detail, suitable for professional mechanics and experienced DIY enthusiasts
Type:
2-stroke, liquid-cooled, single-cylinder
Displacement:
246 cc (246 cubic centimeters)
Compression Ratio:
Typically around 7.0:1 (subject to specific year/variant, consult manual for exact figures)
Horsepower Estimate:
Approx. 30-35 HP (peak, varies by model year and tuning, precise figures in manual)
Torque Estimate:
Approx. 20-24 lb-ft (precise figures in manual)
Carburetor:
Mikuni VM Series (e.g., VM30SS or similar, specific size and type in manual)
Fuel Type:
Unleaded gasoline with 2-stroke oil pre-mix (specific ratio detailed in manual)
Ignition Type:
CDI (Capacitor Discharge Ignition)
Cooling Method:
Liquid-cooled
System:
Premix lubrication (oil mixed with fuel)
Type:
6-speed manual transmission with clutch
Drive Type:
Shaft drive to rear axle (or chain drive depending on specific model variant, manual will clarify)
Clutch Type:
Wet, multi-plate clutch
Gear Ratios:
Specific ratios for each gear and final drive provided in manual
Transmission Oil Type:
Refer to manual for specific API GL-5 gear oil or Suzuki specific recommendations
Length:
Varies slightly by year, approx. 1800-1850 mm
Width:
Varies slightly by year, approx. 1150-1170 mm
Height:
Varies slightly by year, approx. 1050-1100 mm
Dry Weight:
Approx. 180-190 kg (highly dependent on specific model year and equipment)
Curb Weight:
Refer to manual for exact curb weight figures
Fuel Capacity:
Approx. 9.5 - 10.0 liters
Rating:
ATVs are not typically rated by NHTSA or IIHS like passenger vehicles; rider safety is paramount
Braking System:
Hydraulic disc brakes front and rear for powerful stopping capability
Suspension Handling:
Tuned for stability and control during aggressive riding maneuvers
Roll Over Protection:
None (inherent risk with ATVs, operator responsibility)
Lighting:
Headlights and taillight for visibility
Oil Change Engine:
Refer to manual; typically every 10-20 hours of operation or annually
Air Filter Cleaning:
Frequent, depending on operating conditions (e.g., every 5-10 hours)
Spark Plug Inspection:
Every 10-20 hours or annually
Chain Lubrication:
Every 5-10 hours or after riding in wet/muddy conditions
2 Stroke Oil Mix:
Suzuki recommends specific 2-stroke oil and a pre-mix ratio (e.g., 20:1 or 32:1, verify in manual)
Coolant Type:
Ethylene glycol-based antifreeze coolant (refer to manual for specific mix ratio and type)
Brake Fluid Type:
DOT 3 or DOT 4 hydraulic brake fluid (verify in manual)
Carburetor Fouling:
Common with 2-strokes, requires regular cleaning and proper jetting
Suspension Wear:
Seals and bushings can wear over time, requiring rebuilds
Clutch Slippage:
Can occur with aggressive use or worn clutch plates
Electrical Connector Corrosion:
Common in off-road environments, requires inspection and cleaning
Suzuki Atv:
Suzuki has a long and successful history in ATV manufacturing, often pushing performance boundaries
Lt250R Development:
Evolved from earlier models, focusing on lightweight design, powerful two-stroke engines, and sporty handling
Key Improvements:
Typically saw updates in suspension travel, engine tuning, and chassis design throughout its production run
Production Period:
1987-1992
Manufacturing Location:
Japan (Suzuki Motor Corporation)
