Segment:
Performance Sport ATV
Reputation:
Highly regarded for its performance and handling in the late 1980s and early 1990s sport ATV market.
Competitors:
Yamaha Warrior, Honda TRX250R/300EX, Kawasaki Mojave.
Engine Type:
Powerful liquid-cooled, 2-stroke engine.
Suspension:
Advanced long-travel suspension with adjustable components for superior off-road performance.
Braking:
Capable hydraulic disc braking system for reliable stopping power.
Diy Savings:
Enables owners to perform maintenance and repairs themselves, saving significant costs.
Engine:
Complete engine disassembly, inspection, repair, and reassembly of the 2-stroke engine.
Fuel System:
Carburetor (Mikuni VM30SS), fuel tank, fuel lines, fuel filter maintenance and repair.
Lubrication System:
2-stroke oil injection system, gearbox lubrication, oil pump, oil capacities.
Cooling System:
Liquid-cooled system, radiator, fan, water pump, coolant specifications and procedures.
Transmission:
5-speed manual transmission, sub-transmission, gearshift linkage, clutch operation and adjustment.
Electrical System:
Battery, charging system (alternator, voltage regulator), ignition system (CDI, spark plugs, timing), lighting, meters, switches, electric starter.
Frame And Body:
Frame inspection, repair, body panel removal and installation, handlebars, controls.
Suspension Front:
Front forks (air-assisted, adjustable damping), steering system, wheel bearings, hub, brakes.
Brakes:
Hydraulic disc brakes front and rear, brake fluid specifications, caliper, master cylinder, bleeding procedures.
Driving Mechanisms:
Front and rear drive systems, chain adjustment, sprockets, axle inspection.
Rear Suspension:
Single shock absorber (Monoshock, adjustable preload and damping), swingarm, linkage, rear hub, brakes.
Maintenance:
Regular maintenance, lubrication points, fluid changes, filter replacement, chain care.
Troubleshooting:
Diagnostic procedures for common problems, fault finding charts, electrical troubleshooting guides.
Repair Procedures:
Step-by-step instructions for disassembly, assembly, and repair of all major components.
Engine Rebuild:
Complete engine overhaul, including cylinder, piston, crankshaft, connecting rod, valve train (where applicable for 2-stroke port timing), and gearbox rebuild.
Electrical Diagnostics:
Wiring diagrams, component testing, troubleshooting electrical circuits.
Suspension Tuning:
Adjustment procedures for front and rear suspension settings.
Depth:
Comprehensive (from basic maintenance to full engine rebuilds and advanced diagnostics).
Detail Level:
Detailed torque specifications, clearances, wear limits, and assembly instructions.
Diagrams Illustrations:
Includes exploded views, schematics, and repair illustrations.
Engine Type:
Liquid-cooled, 2-stroke, single-cylinder
Displacement:
249 cc (approximately)
Bore X Stroke:
72.0 mm x 61.0 mm (typical for this model range)
Compression Ratio:
6.9:1 (typical, refer to manual for exact specification)
Power Output:
Approximately 35-40 HP (Varies by year and exact tuning, manual will specify).
Cooling Method:
Liquid-cooled
Starting System:
Electric Starter
Carburetor Model:
Mikuni VM30SS (single)
Fuel Type:
Unleaded gasoline (91 octane or higher recommended)
Fuel Capacity:
Approximately 2.5 gallons (9.5 liters) (refer to manual for exact specification)
Oil Type:
2-Stroke specific engine oil (TCW-3 or equivalent, refer to manual for precise specification).
Gear Oil Type:
API GL-4 SAE 80W/90 hypoid gear oil (refer to manual for precise specification).
Length:
Approximately 71.5 inches (1815 mm) (refer to manual for exact specification)
Width:
Approximately 45.3 inches (1150 mm) (refer to manual for exact specification)
Height:
Approximately 40.9 inches (1040 mm) (refer to manual for exact specification)
Dry Weight:
Approximately 379 lbs (172 kg) (refer to manual for exact specification)
Ground Clearance:
Approximately 5.3 inches (135 mm) (refer to manual for exact specification)
Front Tire Size:
AT22 x 7-10 (typical, refer to manual for exact specification)
Rear Tire Size:
AT22 x 10-9 (typical, refer to manual for exact specification)
Wheelbase:
Approximately 49.6 inches (1260 mm) (refer to manual for exact specification)
Oil Change Engine Gearbox:
Intervals for gearbox oil change typically every 6 months or 2000-3000 km (refer to manual for precise intervals and conditions).
Spark Plug Inspection:
Inspect/clean/replace spark plug at regular intervals, typically every 1000-2000 km or annually.
Air Filter Cleaning:
Clean air filter regularly, especially in dusty conditions, often every few hundred kilometers.
Chain Lubrication Adjustment:
Lubricate and adjust drive chain tension every 500-1000 km, or as needed.
Coolant Type:
Permanent type antifreeze coolant, typically a 50/50 mix with distilled water (refer to manual for specific type and capacity).
Brake Fluid Type:
DOT 3 or DOT 4 brake fluid (refer to manual for exact specification).
Carburetor Maintenance:
Mikuni carburetors can be sensitive to dirt and require periodic cleaning and adjustment. Manual covers this in detail.
2 Stroke Top End:
Like all 2-stroke engines, periodic inspection and potential replacement of piston rings and piston are necessary based on usage and wear. Manual guides this process.
Suspension Seals:
Over time, suspension fork seals and rear shock seals can degrade and require replacement. Manual details seal replacement procedures.
Manufacturer:
Suzuki Motor Corporation, Japan.
Specialty:
Suzuki has a long history of producing reliable and performance-oriented motorcycles and ATVs.
Previous Generation:
The LT250R was a successor to the successful LT250R models from 1985-1987, incorporating updates and improvements.
Updates During Covered Years:
While the core platform remained, specific model years within this range (1988-1992) saw incremental updates to suspension, braking, and styling (refer to manual for year-specific details).
Production Period:
1985-1992 (This manual covers the latter half of its production run).
