Model:
LT-F250R Quadracer
Model Nickname:
Quadracer
Product Type:
Factory Service Repair Manual
Product Format:
Downloadable PDF
Product Name:
1988-1992 Suzuki LT 250R Quadracer Factory Service Repair Manual
Chassis Codes:
LT250R, LT250RJ (88), LT250RK (89), LT250RL (90), LT250RM (91), LT250RN (92)
Market Position:
Performance ATV for recreational and sport riding
Competitors:
Yamaha Warrior 250, Kawasaki Mojave 250, Honda FourTrax 250R
Key Features:
Lightweight, powerful two-stroke engine, sporty handling, durable construction
Target Audience:
ATV enthusiasts, service technicians, owners seeking to maintain or repair their vehicle
Instant Access:
Instant download, no shipping costs, no waiting for physical media
Covered Years:
1988, 1989, 1990, 1991, 1992
Covered Models:
LT250R, LT250RJ, LT250RK, LT250RL, LT250RM, LT250RN
Estimated Page Count:
Refer to actual document
Manual Type:
Factory Service Repair Manual
File Compatibility:
Windows, Mac, Linux
Reader Requirement:
Adobe PDF Reader
Engine Systems:
Engine overhaul, disassembly, inspection, assembly, tuning
Cooling System:
Radiator, fan, coolant, hoses, thermostat
Fuel System:
Carburetor (Mikuni VM series), fuel lines, fuel tank, petcock
Electrical System:
Ignition system (CDI), lighting, charging system, starter, wiring diagrams
Chassis Systems:
Frame, suspension (front forks, rear shock absorber), steering, wheels, brakes
General Information:
Vehicle identification, safety precautions, torque specifications, general maintenance guidelines
Periodic Maintenance:
Scheduled maintenance, lubrication, inspections
Service Information:
Troubleshooting guides, diagnostic procedures, special tools
Disassembly Procedures:
Complete component disassembly instructions
Inspection Procedures:
Detailed inspection criteria for all components
Assembly Procedures:
Step-by-step assembly instructions
Troubleshooting:
Diagnostic flowcharts and symptom-based troubleshooting
Technical Depth:
Comprehensive, suitable for professional technicians and advanced DIY enthusiasts
Usage Purpose:
Service, maintenance, repair, troubleshooting, and training
Engine Type:
2-stroke, single-cylinder, liquid-cooled
Displacement:
246 cc (15.0 cu. in.)
Bore X Stroke:
66.0 mm x 72.0 mm (2.60 in x 2.83 in)
Carburetion:
Mikuni VM28SS, single
Ignition:
CDI (Capacitor Discharge Ignition)
Starting System:
Kick starter
Horsepower:
Approximately 25-30 HP (varies by year and tuning)
Torque:
Not explicitly stated, but robust low-end torque characteristic of 2-strokes
Fuel Type:
Unleaded gasoline, minimum 87 octane
Fuel Mixture:
100:1 ratio (or 50:1 with specific 2-stroke oil, refer to manual for precise recommendation)
Cooling Type:
Liquid-cooled
Coolant Capacity:
Refer to manual (typically around 1.5-2.0 liters)
Coolant Type:
Ethylene glycol-based coolant (50/50 mix with distilled water recommended)
Transmission Type:
6-speed manual with automatic clutch (no clutch lever)
Clutch Type:
Wet, multi-plate, automatic engagement
Gear Selection:
Foot operated sequential shifting
Final Drive:
O-ring sealed chain
Transmission Oil Type:
Suzuki Gear Oil SAE 80 API GL-4 (or equivalent)
Transmission Oil Capacity:
Refer to manual (typically around 0.7 - 0.8 liters)
Overall Length:
Refer to manual (approx. 1800-1900 mm)
Overall Width:
Refer to manual (approx. 700-800 mm)
Overall Height:
Refer to manual (approx. 1000-1100 mm)
Dry Weight:
Refer to manual (approx. 180-195 kg)
Curb Weight:
Refer to manual (with all fluids and ready to ride)
Fuel Capacity:
Refer to manual (typically around 10-12 liters)
Safety Ratings:
Not applicable for ATVs in the same manner as passenger vehicles
Active Safety:
Disc brakes, stable chassis design
Passive Safety:
Handlebar padding, ergonomic design for rider control
Recommended Gear:
Helmet, goggles, gloves, long sleeves, long pants, sturdy boots
Oil Change Interval:
Refer to manual (typically every 20-30 engine hours or annually)
Air Filter Cleaning:
Refer to manual (frequently recommended based on operating conditions)
Spark Plug Replacement:
Refer to manual (e.g., every 100-200 engine hours)
Chain Lubrication:
Refer to manual (frequently recommended)
Engine Oil Type:
High-quality 2-stroke engine oil meeting API TC or JASO FD specifications
Brake Fluid Type:
DOT 3 or DOT 4 hydraulic brake fluid
Common Issues:
Carburetor jetting issues, clutch wear, electrical connector corrosion, exhaust leaks, carburetor float needle wear.
Preventative Maintenance:
Regular cleaning of air filter, proper fuel/oil mixture, periodic carburetor cleaning and adjustment, regular inspection of electrical connections.
