Target Audience:
Owners, mechanics, and enthusiasts of the Suzuki LT250R QUAD
Purpose:
To provide complete repair, servicing, and maintenance information
Value Proposition:
Comprehensive, factory-level documentation at an affordable price with no expiration
Content Focus:
Detailed procedures, schematics, and specifications for all aspects of the vehicle
Engine Overhaul:
Complete engine disassembly, inspection, repair, and reassembly
Cooling System:
Radiator, coolant flow, fan operation, hoses, and thermostat
Fuel System:
Carburetor tuning and overhaul, fuel pump, fuel lines, and fuel tank
Ignition System:
CDI unit, ignition coil, spark plug, stator, and timing
Transmission And Drivetrain:
Gearbox disassembly, clutch service, drive chain maintenance, and axle repairs
Suspension System:
Front and rear suspension, shock absorbers, control arms, and linkage
Braking System:
Hydraulic brake system, front and rear calipers, master cylinders, brake lines, and pads
Electrical System:
Wiring diagrams, lighting, battery, charging system, and starter
Frame And Bodywork:
Frame inspection, body panel removal and installation, and plastics
Routine Maintenance:
Oil changes, filter replacements, chain adjustments, and general inspections
Troubleshooting:
Diagnostic charts and symptom-based troubleshooting for common issues
Repair Procedures:
Step-by-step instructions for component replacement and repair
Technical Specifications:
Torque values, clearances, fluid capacities, and electrical resistances
Carburetor Rebuild:
Detailed instructions for carburetor cleaning, adjustment, and part replacement
Engine Rebuild:
Piston replacement, ring gap adjustment, cylinder honing, and valve adjustments
Suspension Tuning:
Adjustments for preload, compression, and rebound damping
Electrical Diagnostics:
Testing of charging system, ignition system, and lighting circuits
Depth Of Coverage:
Comprehensive factory-level detail for all mechanical and electrical systems
Rebuild Guidance:
Suitable for full engine and transmission rebuilds
Diagnostic Capability:
Includes troubleshooting charts to identify and resolve common problems
Transmission Type:
6-speed manual constant mesh
Clutch Type:
Wet, multi-plate
Final Drive:
O-ring sealed chain, drive sprocket, rear sprocket
Gear Ratios:
Specific ratios provided in manual (e.g., 1st: 2.833, 2nd: 2.063, etc.)
Transmission Oil Type:
SAE 80W API GL-4 hypoid gear oil
Transmission Oil Capacity:
0.75 US qt (0.7 L)
Engine Oil Change:
Every 20 hours or 6 months (whichever comes first)
Air Filter Cleaning:
Every 10 hours or as needed based on conditions
Spark Plug Inspection:
Every 20 hours or 6 months
Chain Lubrication Adjustment:
Every 10 hours or after heavy use
Engine Oil Type 2Stroke:
High-quality 2-stroke synthetic or semi-synthetic oil, specifically for air-cooled engines (e.g., Suzuki Performance 2T, Yamalube 2R, or equivalent)
Brake Fluid Type:
DOT 3 or DOT 4 hydraulic brake fluid
Coolant Type:
Ethylene glycol-based antifreeze/coolant (50/50 mixture with distilled water)
Carburetor Clogging:
Common due to fuel residue; requires regular cleaning and proper fuel storage.
Clutch Wear:
Can occur with aggressive riding; clutch plates may require replacement.
Suspension Seals:
Leaking fork seals or rear shock seals can occur with age and use.
Power Valve Sticking:
2-stroke power valves can carbon up and stick, affecting engine performance.
Electrical Connector Corrosion:
Especially in humid environments, connectors can corrode, causing intermittent issues.
