Repair Scope:
Comprehensive repair, maintenance, rebuild, refurbishment, restoration
Technical Depth:
Professional technician level, with adequate data for DIY mechanics
Notes Cautions Warnings:
Included throughout each chapter
Step By Step Instructions:
Numbered instructions for every procedure
Illustrations:
Detailed illustrations, drawings, and photos; enlarged insets for detailed parts examination
Navigation:
Numbered table of contents for fast information retrieval
Coverage:
Troubleshooting and electrical service procedures combined with detailed wiring diagrams
Engine System:
Engine overhaul, tuning, lubrication, cooling system, ignition system, fuel system (carburetors), exhaust system.
Drivetrain:
Transmission disassembly and assembly, clutch operation and adjustment, final drive (chain and sprockets).
Chassis And Suspension:
Front fork service and replacement, rear shock absorber maintenance, frame inspection, steering system.
Braking System:
Front and rear brake caliper service, master cylinder overhaul, brake line inspection and replacement, bleeding procedures.
Electrical System:
Wiring diagrams, charging system (alternator, stator, regulator/rectifier), starting system (starter motor, battery), lighting system, instrument panel functions, fault diagnosis.
Fuel And Exhaust:
Carburetor servicing, fuel pump operation (if applicable), exhaust system components and mounting.
Bodywork And Trim:
Fairing removal and installation, seat removal, body panel fasteners, emblems.
Diagnostic Procedures:
Detailed troubleshooting guides for various systems, fault codes (if applicable), electrical testing.
Maintenance Procedures:
Routine checks, adjustments, fluid changes, filter replacements, chain lubrication and adjustment.
Repair Procedures:
Step-by-step instructions for component disassembly, repair, and reassembly for all major systems.
Rebuilding Procedures:
Detailed guidance for engine and component rebuilds, including specifications and tolerances.
Adjustment Procedures:
Carburetor synchronization, valve clearance adjustment, clutch and brake lever adjustments.
Wiring Diagrams:
Comprehensive and detailed wiring diagrams for all electrical systems.
All Major Systems:
Yes, covers all significant mechanical and electrical systems of the motorcycle.
Diagnostic Tools:
Information provided facilitates the use of common diagnostic tools and techniques for motorcycles.
Engine Type:
V-twin, four-stroke (typical for GT250 models of this era)
Displacement:
Approximately 249cc (specific variants may exist)
Fuel Delivery:
Carburetor (common for this generation; fuel injection may appear in later models if applicable)
Cooling Method:
Liquid-cooled (typical for GT250 models)
Horsepower Range:
Estimated 30-35 HP (typical for this displacement and configuration; specific figures vary by year and tuning)
Torque Range:
Estimated 18-22 lb-ft (typical; specific figures vary)
Cylinder Configuration:
V-twin
Oil Change Interval:
Refer to manual for specific mileage/time intervals (typically 3,000-5,000 miles or annually)
Filter Replacement:
Refer to manual for specific intervals (oil filter, air filter)
Engine Oil Type:
Refer to manual for specific viscosity grade (e.g., 10W-40) and API classification
Coolant Type:
Refer to manual for specific coolant mixture (e.g., 50/50 ethylene glycol)
Brake Fluid Type:
Refer to manual for specific DOT rating (e.g., DOT 4)
Gear Oil Type:
Refer to manual for specific type and capacity (often shared with engine oil for some models).
Common Concerns:
While the manual addresses all issues, owners of motorcycles from this era might encounter common points such as carburetor tuning, electrical connector integrity, and exhaust system condition. The manual's detailed diagnostic section is invaluable here.
Specific Component Notes:
The manual likely details care for the V-twin engine, including proper idle adjustment, chain maintenance, and suspension fork oil changes, which are critical for longevity.