Purpose:
A professional-grade workshop manual designed for owners and technicians to perform maintenance, diagnostics, and repairs on 1975-1976 Harley-Davidson SS-175 and SS-250 motorcycles.
Advantage:
Provides the same comprehensive information used by local service/repair shops, offering significant cost savings for DIY repairs.
Features:
Complete and intact, hundreds of pages of diagrams and detailed information, step-by-step instructions, critical specifications, troubleshooting guidance, electrical system diagnostics, Wiring Diagrams and Bulletins.
Troubleshooting Guidance:
Features dedicated troubleshooting sections that combine electrical service procedures with wiring diagrams for ease of problem diagnosis.
Vehicle Coverage:
All SS-175 and SS-250 models for 1975 and 1976, including all engine, trim, and transmission types.
Specific Components Covered:
Components such as the fuel tank, seat, fenders, handlebars, footpegs, exhaust system, and frame are likely detailed.
Estimated Page Count:
Hundreds of pages (as stated in product description).
Type:
Workshop Repair Service Manual
Systems:
General Information, Maintenance, Chassis, Fuel System, Cooling System, Engine, Clutch, Engine Lubrication System, Engine Removal/Installation, Drive, Transmission, Wheels/Tires, Final Drive, Brakes, Suspension, Steering, Frame, Electrical System, Wiring Diagram.
Electrical System Detail:
Comprehensive coverage of the electrical system, including ignition, lighting, charging (if applicable), and detailed wiring diagrams.
Chassis And Frame:
Detailed information on the frame, forks, swingarm, and other chassis components, including inspection and repair procedures.
Suspension And Steering:
Detailed procedures for servicing the front forks (including oil changes and seal replacement) and rear suspension components.
Procedures:
Service, maintenance, troubleshooting, repair, diagnostics, disassembly, assembly, cleaning, reinstallation, detailed substeps, step-by-step repair procedures.
Diagnostic Procedures:
In-depth diagnostic procedures for identifying and resolving mechanical and electrical faults.
Engine Rebuild:
Comprehensive instructions for engine disassembly, inspection of wear parts (pistons, rings, bearings), and reassembly.
Wheel And Tire Service:
Instructions for wheel bearing maintenance, tire mounting and dismounting, and spoke tensioning.
Depth:
Comprehensive, covering professional technician level diagnostics and repair, including critical specifications, diagrams, and illustrations.
Illustrations And Diagrams:
Hundreds of pages featuring detailed illustrations, drawings, photos, and diagrams to aid in understanding repair procedures.
Critical Specifications:
Includes critical specifications such as torque values for fasteners, engine tolerances, ignition timing settings, and electrical component resistance.
Special Tools:
Information on specific tools required for various repair and maintenance procedures.
Engine Type:
Two-stroke, parallel-twin (common configuration for this era of Harley-Davidson dirt bikes/motocross models).
Bore And Stroke:
Specific bore and stroke dimensions for both 175cc and 250cc engines (detailed in manual).
Engine Displacement Variants:
175cc (SS-175) and 250cc (SS-250).
Power Output Estimate:
SS-175 likely around 15-20 HP, SS-250 likely around 20-25 HP (typical for engines of this size and era).
Fuel System Coverage:
Detailed coverage of the fuel system, including carburetor type, fuel delivery, and adjustments.
Carburetor Information:
Details on specific carburetor models (e.g., Dell'Orto or Amal), jetting, and adjustment procedures.
Transmission Type:
Likely a 5-speed constant mesh transmission (typical for this model).
Optional Transmissions:
N/A (Manual indicates coverage for all transmission types, implying a single standard)
Transmission Coverage:
Detailed information on transmission operation, disassembly, assembly, and repair.
Clutch Operation:
Detailed procedures for clutch adjustment, inspection, and replacement of clutch plates.
Gear Ratios:
Specific gear ratios for each speed of the transmission.
Wheelbase:
Specific to SS-175 and SS-250 models (details available in manual).
Tire Sizes:
Specific front and rear tire sizes for both models (e.g., 17-inch front, 18-inch rear).
Wheel Bolt Pattern:
Specific wheel bolt pattern for front and rear wheels.
Dry Weight:
Specific to SS-175 and SS-250 models (details available in manual).
Gross Vehicle Weight Rating:
Specific GVWR (details available in manual).
Maintenance Schedule:
Detailed service intervals for routine maintenance tasks, lubrication, and component checks.
Tune Up Recommendations:
Guidance on recommended tune-up procedures, including spark plug replacement, air filter cleaning, and ignition timing.
Carburetor Cleaning Interval:
Recommended intervals for carburetor cleaning and synchronization.
Engine Oil Type:
Specific oil viscosity and type recommended by Harley-Davidson for these two-stroke engines (e.g., 20W/50 or specific 2-stroke oil mixture).
Transmission Oil Type:
Specific transmission fluid type and capacity.
Brake Fluid Type:
Specification for brake fluid if hydraulic brakes are present (likely drum brakes on these models).
Chain Lubricant:
Recommendations for chain lubrication type and frequency.
Common Problems:
Troubleshooting section likely addresses common issues related to two-stroke engines of this era, such as carburetor tuning, ignition problems, and wear on the clutch and transmission.
Ignition System Troubleshooting:
Guidance on diagnosing and rectifying common ignition system faults, such as points, condenser, and coil issues.
Harley Davidson Legacy:
While known for larger V-twins, Harley-Davidson produced smaller displacement models, including off-road and dirt bikes, during this period, often utilizing Italian-sourced components or designs (e.g., Aermacchi).
Ss Series Context:
The SS series represented Harley-Davidson's foray into lightweight, sporty, and off-road oriented motorcycles, often developed in collaboration with Italian manufacturer Aermacchi.
Production Period:
1975-1976 for the specific models covered by this manual.
