This manual covers the CB100, CL100, SL100, CB125S, CD125S, and SL125 motorcycles produced in 1971. These models represent robust engineering and commitment to reliability, offering a range of versatile motorcycles that were popular for their performance and ease of use in the 1970s. The CB series provided standard, dependable transportation, while the CL and SL variants offered variations suited for different riding styles. These motorcycles are characterized by their efficient 4-stroke engines, with displacements of 99cc for the 100cc variants and 122cc for the 125cc variants, typically paired with 4- or 5-speed transmissions and chain drive. This comprehensive service and repair manual provides detailed information essential for maintaining and repairing these motorcycles. It covers a wide array of topics, including general information, periodic maintenance, tune-up procedures, engine, fuel and lubrication systems, electrical systems, chassis, and servicing information. The manual offers step-by-step instructions, troubleshooting guides, and technical specifications, making it an invaluable resource for owners and independent mechanics alike. Its detailed coverage aims to facilitate efficient diagnostics, repairs, and routine upkeep, ensuring the longevity and optimal performance of the vehicles. 🏷️ Basic Information Identification Make: Honda Model Lineup: CB100, CL100, SL100, CB125S, CD125S, SL125 Model Year Covered: 1971 Vehicle Type: Motorcycle Codes Manual Product Code: Not Specified 👋 Introduction Market Position Target Audience: Honda motorcycle owners and independent mechanics seeking detailed service information. Competitive Analysis Value Proposition: Provides professional-level repair and maintenance data, enabling cost savings through DIY repairs. Key Features Manual Type Distinction: Authentic service manual utilized by factory-trained technicians. Detail Level: Step-by-step instructions and extensive repair information. 📋 Manual Details Coverage Areas Primary Coverage Areas: General Information, Periodic Maintenance, Tune-up Procedures, Engine, Fuel and Lubrication System, Electrical System, Chassis, Servicing Information Page Count Page Count: 101 Manual Type Manual Type: Service and Repair Manual Language Language: English Format File Format: PDF Downloadable: Yes Printable: Yes Compatibility: Windows/Mac Required Software: Adobe PDF Reader 📖 Manual Coverage Systems Covered Engine: Detailed coverage of engine disassembly, assembly, inspection, and repair. Fuel System: Carburetor tuning, cleaning, and repair; fuel tank and petcock servicing. Lubrication System: Oil pump operation, oil filter replacement, and lubrication points. Electrical System: Ignition system (spark plugs, coil, points, condenser), lighting, charging system (generator/alternator, rectifier/regulator), and wiring diagrams. Chassis: Frame inspection, suspension (front forks, rear shocks), steering, wheels, and brakes (drum brakes). Procedures Included Maintenance: Periodic maintenance checks, oil changes, filter replacements, chain adjustment, and brake adjustments. Tune Up: Detailed procedures for carburetor synchronization, ignition timing, valve clearance adjustment, and general engine tuning. Diagnostics: Troubleshooting guides and fault diagnosis for common issues across all systems. Repair: Step-by-step repair instructions for major components and sub-assemblies. Technical Depth Depth: Comprehensive, covering routine maintenance to major overhauls and diagnostics. Designed for professional technicians. Parts Information Parts Reference: Implied to cover part identification for repair purposes, though specific part numbers are not listed in the product description. Troubleshooting Troubleshooting Approach: Systematic diagnosis of common problems with logical solutions. 📊 Manual Specifications File Format PDF Searchability: Likely text-searchable if scanned with OCR, but not guaranteed without explicit mention. Print Quality Print Quality Description: Digital PDF download. Print quality depends on user's printer. Binding Type Binding Type: Not Applicable (Digital Download) Paper Type Paper Type: Not Applicable (Digital Download) Content Quality Instruction Style: Clear, concise, step-by-step instructions with technical diagrams (implied by 'very detailed'). ⚙️ Engine Specifications Primary Engine Engine Type: 4-stroke, OHC, Air-Cooled Twin-Cylinder (for CB100/CL100/SL100) and Single-Cylinder (for CB125S/CD125S/SL125) Displacement 100Cc Variants: 99cc (CB100, CL100, SL100) Displacement 125Cc Variants: 122cc (CB125S, CD125S, SL125) Performance Estimated Horsepower 100Cc: Approximately 10-11 HP (specific figures vary by model and tuning) Estimated Horsepower 125Cc: Approximately 11-13 HP (specific figures vary by model and tuning) Fuel System Carburetor Type: Typically single Keihin carburetor (specific model may vary) Fuel Type: Unleaded gasoline (Octane rating as per Honda recommendation, likely 87 or higher) 🔧 Transmission Standard Transmission Type: 4-speed or 5-speed constant mesh, foot-shifted Optional Transmission Variants: Some models may have 4-speed, others 5-speed. Features Clutch Type: Wet, multi-plate Final Drive: Chain drive 📐 Dimensions Exterior Overall Length: Varies by model (e.g., CB100 ~72 inches) Wheelbase: Varies by model (e.g., CB100 ~49 inches) Weights Dry Weight: Varies by model (e.g., CB100 ~240 lbs) 🛡️ Safety Features Active Features Braking System: Front and rear drum brakes Lighting: Headlight, taillight, brake light, turn signals (depending on model variation) Passive Features Frame Construction: Steel cradle frame 💡 Technology Features Infotainment Infotainment Systems: None (basic analog gauges for speedometer, odometer, and neutral indicator). Driver Assistance Driver Assistance Features: None Connectivity Connectivity Features: None 🔧 Maintenance Service Intervals Oil Change Interval: Typically every 1,000-2,000 miles or 6 months (refer to manual for exact specifications). Tune Up Interval: Recommended annually or every 3,000-5,000 miles, including spark plugs, points, and carburetor adjustments. Valve Clearance Interval: Typically every 2,000-4,000 miles. Fluid Specifications Engine Oil Type: SAE 10W-30 API SE...