Purpose:
To provide comprehensive repair and maintenance information for owners and mechanics
Comparison:
Offers detailed, step-by-step procedures with diagrams, surpassing basic service guides
Download Availability:
Instant download for immediate access
Ease Of Use:
Designed for clarity and simplicity, suitable for both experienced mechanics and DIY enthusiasts
Engine:
Engine disassembly, assembly, repair, adjustments, specifications
Transmission:
Transmission service, repair, and specifications
Fuel System:
Carburetor adjustment and overhaul, fuel tank, fuel lines
Ignition System:
Ignition timing, points, condenser, spark plugs
Electrical System:
Wiring diagrams, lighting, battery, charging system
Suspension:
Front fork service, rear shock absorber service and adjustment
Brakes:
Brake system diagnosis, repair, fluid replacement
Cooling System:
Air-cooling system considerations
Bodywork Chassis:
Frame, fenders, seat, handlebars, controls, exhaust system
Maintenance:
Scheduled maintenance, lubrication, periodic checks
Troubleshooting:
Diagnostic procedures for common issues, symptom-based troubleshooting
Repair:
Step-by-step repair instructions for all major components
Disassembly Assembly:
Detailed procedures for taking apart and reassembling components
Adjustments:
Precise instructions for adjusting various systems (e.g., clutch, brakes, carburetor)
Depth:
Comprehensive, covering from basic maintenance to complete engine rebuilds
Detail Level:
Step-by-step procedures, detailed explanations, pictorial diagrams, exploded views
Special Tools:
Reference and illustration of required special service tools
Specifications:
Service data, specifications, tightening torques, wear limits
Engine Type:
Single-cylinder, 2-stroke
Displacement:
248cc (Approximately, based on model naming)
Cooling Method:
Air-cooled
Bore X Stroke:
Specific values require manual consultation, typical for 250cc 2-stroke
Horsepower:
Specific figures not provided in description, typically around 20-25 HP for this class
Torque:
Specific figures not provided in description
Carburetor:
Details on specific carburetor models and settings covered
Fuel Type:
Pre-mix gasoline/oil ratio specified in manual
Crash Test Results:
N/A (Motorcycle, data not typically available in this format)
Braking System:
Drum brakes front and rear, with service procedures
Lighting:
Headlight, taillight, turn signals, with electrical troubleshooting
General Maintenance:
Periodic lubrication, chain adjustment, brake checks, air filter cleaning/replacement as per manual's schedule
Engine Oil:
Specific oil type and viscosity (e.g., SAE 30 or 20W-50) and capacity detailed in manual
Transmission Oil:
Specific transmission oil type and capacity detailed in manual
Brake Fluid:
Specific brake fluid type (e.g., DOT 3 or DOT 4) and bleeding procedures detailed
Carburetor Tuning:
Carburetor tuning and cleaning are common maintenance items for 2-stroke engines of this era.
Ignition Points:
Regular inspection and adjustment of ignition points and timing are crucial for performance.
Air Filter:
Cleaning or replacement of the air filter is essential for engine longevity and performance.
Clutch Adjustment:
Clutch adjustment to maintain proper engagement and disengagement is a regular task.
Heritage:
Harley-Davidson, a long-standing American motorcycle manufacturer with a rich history.
Sx Series:
The SX series represented Harley-Davidson's foray into off-road and dual-sport motorcycles, often utilizing Aermacchi technology.
Production Period:
1974-1976 for the SX 250 model covered by this manual
