Model:
CB100, CL100, SL100, CB125S, CD125S, SL125
Chassis Codes:
CB100 (CB100-1000001 to CB100-1076551), CL100 (CL100-1000001 to CL100-1061551), SL100 (SL100-1000001 to SL100-1043201), CB125S (CB125S-1000001 to CB125S-1069451), CD125S (CD125S-1000001 to CD125S-1007711), SL125 (SL125-1000001 to SL125-1037401)
Target Audience:
Honda motorcycle owners and independent repair shops seeking detailed, factory-level repair and maintenance information.
Value Proposition:
Provides comprehensive factory-level service data for a range of popular small-displacement Honda motorcycles from the early to mid-1970s, offering critical repair and maintenance guidance often unavailable elsewhere for these vintage models.
Content Quality:
Hundreds of pages, detailed photos, diagrams, step-by-step instructions, same content used by professional technicians.
Digital Benefits:
Instant download, accessible on multiple devices, lifetime use, no extra fees.
Models Covered:
Honda CB100, CL100, SL100, CB125S, CD125S, SL125
Years Covered:
1971, 1972, 1973, 1974, 1975
Estimated Pages:
Hundreds of pages (exact number not specified but implied to be substantial)
Type:
Service Repair Workshop Manual
Language:
English (implied by common market for such manuals)
Engine:
Complete engine overhaul, tuning, carburetor, ignition system, lubrication system, cooling system (air-cooled)
Transmission:
Gearbox disassembly, assembly, troubleshooting, clutch operation, gear shift linkage
Electrical:
Wiring diagrams, battery, charging system (generator/alternator), ignition system, lighting, starter motor (if applicable), fuses
Chassis:
Frame inspection and repair, front forks (suspension), rear shock absorbers, steering system, wheel bearings
Brakes:
Front and rear brake systems (drum brakes typically), brake shoe replacement, brake drum inspection, brake cable adjustment
Fuel System:
Fuel tank, fuel lines, fuel filter, carburetor (specific models like Keihin, Mikuni), jetting specifications
Bodywork:
Body panel removal and installation, seat, fenders, fuel tank, exhaust system components
Suspension:
Front telescopic forks, rear dual shock absorbers, lubrication, seal replacement, spring tension adjustment.
Cooling System:
Air-cooling system management and component checks.
Maintenance:
Routine servicing, oil changes, filter replacements, chain adjustment, brake adjustments, tune-ups, valve clearance checks
Troubleshooting:
Diagnostic procedures for common and uncommon problems, symptom-based troubleshooting charts
Repair:
Step-by-step instructions for component disassembly, repair, reassembly, and replacement
Overhaul:
Detailed instructions for complete engine and transmission overhauls
Diagrams:
Exploded views, wiring diagrams, torque specifications, schematics
Part Identification:
Detailed part numbers and diagrams for component identification and ordering.
Torque Specifications:
Precise torque values for all critical fasteners, essential for safe and correct assembly.
Depth:
Comprehensive, covering everything from basic maintenance to full engine rebuilds and advanced diagnostics, suitable for professional mechanics.
Diagnostic Charts:
Includes troubleshooting charts to help diagnose issues based on symptoms.
Wiring Schematics:
Detailed electrical wiring diagrams for all models covered.
Scope:
Full factory service manual covering all aspects of repair, maintenance, and troubleshooting.
Engine Type:
Air-cooled, four-stroke, SOHC (Single Overhead Cam) or OHC (Overhead Cam)
Displacement Cb100 Cl100 Sl100:
99cc
Displacement Cb125S Cd125S Sl125:
124cc
Bore Stroke 99Cc Models:
Approx. 49.5 mm x 50.0 mm
Bore Stroke 124Cc Models:
Approx. 52.0 mm x 57.8 mm
Horsepower 99Cc Models:
Approx. 10-12 HP (Varies by specific model and tuning)
Horsepower 124Cc Models:
Approx. 12-14 HP (Varies by specific model and tuning)
Carburetor Type:
Single carburetor, likely Keihin or Mikuni (specific models mentioned in manual)
Fuel Delivery:
Gravity feed from fuel tank
Ignition Type:
Battery ignition (points and condenser) or CDI (Capacitor Discharge Ignition) depending on model and year.
Oil Change Interval:
Typically every 1,000-1,500 miles or 6 months (refer to specific manual for exact intervals and oil type).
Valve Adjustment Interval:
Typically every 3,000-5,000 miles (refer to specific manual for exact intervals).
Engine Oil Type:
SAE 10W-30 or 10W-40 API SE or SF classification (verify in manual for specific model and temperature range).
Transmission Oil Type:
Dedicated gear oil or engine oil, depending on Honda's specification for the integrated gearbox. Manual will specify exact type and capacity.
Common Wear Items:
Carburetor gumming/clogging due to fuel degradation, worn clutch plates, aging electrical components (e.g., rectifier, ignition coils), worn suspension bushings, and brake cable stretch/wear.
Cam Chain Tensioner:
Some models may benefit from manual cam chain tensioner adjustment or replacement if rattling is present.
Carburetor Cleaning:
Regular cleaning and proper jetting are crucial for optimal performance and starting, especially with older fuel systems.
Electrical System Check:
Annual checks of charging system output and battery condition are recommended for reliability.
Honda Motorcycle Division:
Honda's significant growth in the motorcycle market during the 1960s and 1970s, pioneering lightweight, reliable, and accessible machines.
Segment Introduction:
These models represented Honda's push into the smaller displacement commuter and recreational segments, building on the success of the 'mini-bike' era and offering more substantial, user-friendly options.
Manufacturing Era:
Early to mid-1970s, a period of significant innovation and popularity for Japanese motorcycles globally.
