Positioning:
High-performance sport ATV designed for recreational riding and competition.
Key Competitors:
Yamaha Warrior 250, Honda TRX250R, Kawasaki Mojave 250.
Vehicle Highlight:
Powerful two-stroke engine, advanced suspension for its time, lightweight chassis, and sporty handling.
Value:
Provides comprehensive technical knowledge, enabling owners to perform maintenance and repairs confidently, saving on professional service costs.
Digital Vs Paper:
Offers the same technical content as a printed manual but with instant access and digital convenience.
Primary Coverage:
Suzuki LT250R LT 250R 1991
Secondary Coverage:
Related models and engine variants within the LT250R lineage may have overlapping information.
Estimated Pages:
Estimated 200-300 pages (typical for factory-level service manuals, exact count not specified)
Type:
Service Repair Manual / Workshop Manual / Factory Service Manual
Format:
PDF (Digital Download)
Engine Mechanical:
Engine disassembly, assembly, inspection, repair, and overhaul procedures for the 246cc two-stroke engine.
Fuel System:
Carburetor tuning, cleaning, and overhaul; fuel pump operation and testing; fuel tank and line maintenance.
Ignition System:
CDI ignition system diagnostics, testing, and component replacement (stator, coil, plug).
Cooling System:
Liquid cooling system maintenance, radiator service, coolant specifications, and troubleshooting.
Transmission Drivetrain:
Gearbox disassembly, assembly, inspection, and repair; clutch operation and adjustment; chain and sprocket maintenance.
Suspension System:
Front and rear suspension inspection, adjustment, and repair; shock absorber service; linkage maintenance.
Braking System:
Hydraulic brake system maintenance, caliper and master cylinder overhaul, brake pad replacement, and fluid specifications.
Electrical System:
Wiring diagrams, lighting system, battery maintenance, starter system, and component testing.
Chassis Frame:
Frame inspection, component mounting, and general chassis maintenance.
Bodywork Cosmetics:
Plastic body panel removal and installation, graphics, and general appearance maintenance.
Maintenance:
Routine maintenance, lubrication, filter changes, adjustments, and pre-ride inspections.
Troubleshooting:
Diagnostic flowcharts and common problem identification for engine, electrical, and mechanical issues.
Repair:
Detailed step-by-step instructions for component repair and replacement.
Disassembly Assembly:
Comprehensive guides for dismantling and reassembling all major vehicle components.
Cleaning Reinstallation:
Proper cleaning and preparation procedures before reinstallation of parts.
Depth:
Factory-level detail suitable for professional technicians and advanced DIY mechanics.
Target Audience:
Professional technicians and experienced DIY enthusiasts with basic mechanical and electrical knowledge.
Portability:
Portable Document Format (PDF) for wide compatibility.
Printability:
Full Printable Specifications
Zoom Capability:
Zoom IN/OUT functionality for detailed viewing of illustrations and text.
Binding:
Digital (Not Applicable - Downloadable)
Paper Type:
Digital (Not Applicable - PDF format)
Delivery Method:
Instant Download
Software Requirements:
Adobe PDF Reader & WinZip (or equivalent decompression software)
Compatibility:
All Versions of Windows & Mac
Engine Type:
2-Stroke, Liquid-Cooled, Reed Valve
Displacement:
246 cc (15.0 cu in)
Bore X Stroke:
66.0 mm x 72.0 mm (2.60 in x 2.83 in)
Compression Ratio:
Approx. 7.2:1
Carburetor:
Mikuni VM30SS (Single Carburetor)
Horsepower:
Estimated 36-38 HP (at flywheel, exact figure varies by source and tuning)
Torque:
Estimated 24-26 lb-ft (at flywheel, exact figure varies by source and tuning)
Fuel Type:
Unleaded gasoline (91 octane or higher recommended)
Oil Mixture:
Pre-mix (50:1 ratio recommended with high-quality 2-stroke oil)
Coolant Type:
Ethylene glycol-based coolant (50/50 mix with distilled water)
Ignition System:
Transistorized CDI with electronic advance
Spark Plug Type:
NGK BR9ES or equivalent
Spark Plug Gap:
0.7-0.8 mm (0.028-0.031 in)
Transmission Type:
6-Speed Manual Sequential
Clutch Type:
Wet Multi-Plate
Gear Ratios:
Specific gear ratios are detailed within the manual (e.g., 1st: 2.615, 2nd: 1.867, 3rd: 1.400, 4th: 1.130, 5th: 0.960, 6th: 0.821)
Final Drive:
O-Ring Sealed Chain Drive
Transmission Oil Type:
Suzuki Gear Oil API GL-4 SAE 80W or equivalent motorcycle transmission oil.
Transmission Oil Capacity:
Approx. 750 ml (0.79 US qt)
Length:
Approx. 1820 mm (71.7 in)
Width:
Approx. 1200 mm (47.2 in)
Height:
Approx. 1060 mm (41.7 in)
Wheelbase:
Approx. 1240 mm (48.8 in)
Dry Weight:
Approx. 174 kg (383.6 lbs)
Gross Vehicle Weight Rating:
Not explicitly specified, but typical for its class.
Cargo Capacity:
Minimal dedicated cargo space; racks typically available as accessories.
Safety Certification:
As per general ATV safety standards of the era (e.g., ANSI).
Braking System:
Front: Dual Hydraulic Disc; Rear: Single Hydraulic Disc.
Handlebars:
Wide handlebars for improved control and stability.
Footwells:
Wide, anti-slip footwells for secure rider placement.
Oil Change:
Every 30-40 hours of operation or annually, whichever comes first. Pre-mix ratio is critical.
Air Filter Cleaning:
Clean/replace air filter every 10-15 hours or as needed based on riding conditions.
Spark Plug Replacement:
Inspect and clean every 20 hours, replace every 40-50 hours or when fouled.
Chain Maintenance:
Lubricate and adjust chain tension every 10-15 hours.
Brake Fluid:
DOT 3 or DOT 4 Hydraulic Brake Fluid (refer to manual for precise type).
Coolant Capacity:
Approx. 1.2 Liters (1.3 US qt)
Engine Carbon Buildup:
Two-stroke engines can develop carbon buildup in the exhaust port and piston crown, requiring periodic cleaning.
Carburetor Fouling:
Mikuni carburetors can be prone to clogging with improper fuel or debris; regular cleaning is recommended.
Suspension Seals:
Older ATVs may experience worn suspension seals leading to oil leaks.
Electrical Connections:
Corrosion or loose connections in the electrical system can cause intermittent issues.
Heritage:
Suzuki has a long-standing reputation for performance and reliability in powersports, including ATVs.
Evolution:
The LT250R was a significant model in Suzuki's sport ATV lineup, building upon earlier generations and setting a benchmark for performance.
Production Period:
The LT250R was produced from the mid-1980s into the early 1990s, with the 1991 model representing a refined iteration.
Manufacturing Location:
Primarily Japan.
