Model:
LT230S / LT230GE / LT-F230G / LT250S
Product Name:
Suzuki LT230S LT230GE LT250S Repair and Service Manual 1985-1990
Production Years Covered:
1985, 1986, 1987, 1988, 1989, 1990
Chassis Codes:
LT230S, LT230GE, LT-F230G, LT250S
Target Audience:
DIY enthusiasts, home mechanics, and professional technicians seeking to maintain, repair, restore, or diagnose Suzuki LT230S, LT230GE, LT-F230G, and LT250S ATVs.
Value Proposition:
Provides comprehensive, factory-level repair information at a fraction of the cost of dealership service, empowering owners to perform their own maintenance and repairs, saving money and extending vehicle lifespan.
Manual Attributes:
Illustrated with clear step-by-step instructions, detailed troubleshooting guidance, comprehensive technical specifications, and factory-approved repair procedures.
Powertrain:
Engine overhaul, transmission, drive train, clutch, gearbox, primary reduction gear, crankshaft, connecting rod, piston, cylinder, camshaft, valves, fuel system, carburetor/EFI, exhaust system, ignition system, starting system, lubrication system, cooling system.
Chassis And Body:
Frame, suspension (front forks, rear swingarm, struts), steering, brakes (front and rear, rotors, pads, hydraulic system), wheels, tires, fenders, plastics, plastics, handlebars, body panels, seat, fuel tank, muffler.
Electrical System:
Magneto, stator, rectifier, battery, charging system, lighting (headlight, taillight), starter motor, ignition system components, switches, throttle cable, wiring diagrams, error codes.
Maintenance:
Scheduled maintenance, oil changes, fluid checks and changes (coolant, brake fluid, transmission fluid), filter replacements, chain adjustment, spark plug inspection/replacement, valve clearance adjustment, carburetor/EFI tuning and adjustment, battery maintenance.
Repair And Rebuild:
Complete engine disassembly and reassembly, transmission rebuild, carburetor overhaul, brake system repair, suspension component replacement, electrical component troubleshooting and replacement, bodywork repair and panel replacement.
Troubleshooting:
Diagnostic procedures for common and uncommon problems, identifying causes of no spark, engine misfires, starting issues, braking problems, electrical failures, and driveability concerns. Includes troubleshooting guides for specific components.
Diagnostic Capabilities:
Detailed diagnostic procedures, electrical schematics, troubleshooting flowcharts, and symptom-based problem solving.
Rebuild Instructions:
Comprehensive step-by-step instructions for complete engine and major component rebuilds, including torque specifications and clear illustrations.
Specification Data:
Detailed technical specifications, including torque values, clearances, fluid capacities, viscosity recommendations, compression ratios, bore and stroke dimensions, and electrical specifications.
Engine Type Lt230:
Single-cylinder, 4-stroke, air-cooled (specific displacement varies by sub-model, likely around 230cc)
Engine Type Lt250:
Single-cylinder, 4-stroke, air-cooled (likely around 250cc)
Bore Stroke Lt230:
Detailed in manual (expect typical values for 230cc class)
Compression Ratio:
Detailed in manual
Fuel Delivery:
Carburetor (likely Mikuni), potentially EFI on some late-model variants (as indicated by 'GE' designation potentially implying 'Electronic Fuel Injection')
Carburetor Specifications:
Specific jet sizes (main jet, pilot jet, slow jet), mixture screw adjustments, and idle speed settings provided in manual.
Transmission Type:
Manual or Semi-Automatic (specifics vary by model variant, likely 5-speed manual or similar for LT230S/LT250S, potentially CVT or different for shaft drive models).
Drive Type:
Chain drive (LT230S, LT250S) and Shaft drive (LT230G, LT230GE, LT-F230G).
Reverse:
Some models may feature reverse gear, detailed in manual.
Gear Ratios:
Detailed gear ratios for all speeds provided in manual.
Overall Length:
Varies by model, detailed in manual.
Overall Width:
Varies by model, detailed in manual.
Overall Height:
Varies by model, detailed in manual.
Dry Weight:
Varies by model, detailed in manual.
Curb Weight:
Varies by model, detailed in manual.
Engine Oil Change:
Recommended intervals (e.g., every 1000-1500 miles or annually) detailed in manual.
Air Filter Cleaning:
Regular inspection and cleaning/replacement intervals provided, dependent on operating conditions.
Spark Plug Inspection:
Recommended inspection intervals and replacement guidelines detailed.
Engine Oil Viscosity:
Recommended viscosity grades (e.g., SAE 10W-40 or 20W-50) and API service classifications detailed.
Coolant Type:
If liquid-cooled, type and mixture ratio specified. (Note: These are likely air-cooled, but manual will confirm any fluid needs).
Brake Fluid Type:
DOT 3 or DOT 4 specification for hydraulic brake systems.
Transmission Oil Type:
Specific gear oil or engine oil grade for transmission lubrication, detailed in manual.
Common Wear Items:
Brake pads, tires, chains/sprockets (for chain drive models), carburetor gaskets, and electrical connections can be common wear items on ATVs of this era.
Potential Problems:
Carburetor gumming due to fuel degradation, electrical contact issues, and wear on suspension components are potential issues addressed by the manual.
Suzuki Atv Legacy:
Suzuki has a long history of producing reliable and capable ATVs, with models like the LT series being foundational in the sport and utility ATV market.
Lt230 Series Development:
The LT230S and its variants represented Suzuki's entry and development in the lightweight to mid-size sport ATV segment, focusing on performance and maneuverability.
Lt250S Development:
The LT250S likely served as a performance-oriented successor or variant within the Suzuki ATV lineup, offering increased displacement and capability.
Manufacturing Origin:
Likely manufactured in Japan, consistent with Suzuki's automotive and powersports production.