Honda C90 S90 Cl90 Cd90 Ct90 Service Repair Manual

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Typ: Motorcycle

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Art.-Nr: 104805

Stichworte: C90 Cd90 Cl90 CT Series Ct90 Featured Honda Motorcycle Motorcycles S90

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Beschreibung

This manual provides comprehensive service and repair information for motorcycles, including the C90, S90, CL90, CD90, and CT90 models. These motorcycles, descendants of the iconic Super Cub, are celebrated for their reliability, fuel efficiency, and versatility, spanning various styles from street commuters to trail-ready machines. Primarily produced from the 1960s through the 1980s, these models represent a significant part of heritage in creating accessible and enduring two-wheeled transportation. Their robust engineering and straightforward mechanical design have made them popular for daily use, restoration projects, and as reliable vintage machines. The purpose of this digital repair manual is to equip owners, mechanics, and technicians with the detailed knowledge required for the maintenance, repair, and restoration of these motorcycles. It covers a wide array of systems, including in-depth engine service, fuel system operation, gearbox and transmission maintenance, clutch procedures, suspension and brake servicing, and electrical system diagnostics. The manual includes factory repair procedures, fault-finding guides, rebuilding instructions, and essential technical specifications, all supported by abundant illustrations and diagrams to ensure clarity and accuracy in every task.

🏷️ Basic Information

Identification

Make:

Honda

Model:

C90, S90, CL90, CD90, CT90

Product Type:

Service and Repair Manual

Codes

Model Codes Covered:

C90, S90, CL90, CD90, CT90

👋 Introduction

Market Position

Target Audience:

Honda C90, S90, CL90, CD90, CT90 owners, DIY mechanics, restoration enthusiasts

Competitive Analysis

Manual Value:

Provides dealer-level diagnostic and repair information, saving on professional labor costs.

Key Features

Content Scope:

Comprehensive coverage from routine maintenance to in-depth engine and gearbox rebuilding.

Resource Type:

Professional quality, detailed service repair manual.

📋 Manual Details

Coverage Areas

Systems Covered:

Engine Service, Fuel System, Gearbox, Exhaust System, Suspension, Bodywork, Cooling System, Electrics, Brake Servicing, Transmission, Driveshaft, Timing Chain, Clutch, Front Suspension

Procedures Included:

Repair, Maintenance, Rebuilding, Refurbishing, Restoration, Fault Finding, Clutch Removal and Installation, Gearbox Service, Suspension Service, Brake Procedures, Engine Firing Order

Page Count

Estimated Page Count:

Detailed and comprehensive, exact count not specified but implied to be extensive for full coverage.

Manual Type

Manual Type:

Factory Service Manual / Digital Repair Manual

Language

Language:

English (assumed based on product description phrasing)

Format

Format:

Digital Download (PDF)

📖 Manual Coverage

Systems Covered

Engine:

Complete Engine Service, Engine Firing Order, Timing Chain Service

Fuel System:

Fuel System Service

Transmission Drivetrain:

Gearbox, Transmission, Driveshaft, Clutch Removal and Installation

Suspension Steering:

Suspension, Front Suspension

Brakes:

Brake Servicing Procedures

Electrical:

Wiring Diagrams, Electrics

Bodywork Frame:

Bodywork

Cooling System:

Cooling System

Procedures Included

Maintenance:

Factory Maintenance Schedules

Diagnostics:

Fault Finding

Rebuilding:

Rebuilding the machine (engine, gearbox implied)

Technical Depth

Depth:

Comprehensive (from wiring to rebuilding the machine), Factory Repair Procedures, Detailed Specifications

Visual Aids

Illustrations:

Abundant Illustrations, Lots of Pictures & Diagrams

📊 Manual Specifications

File Format

File Type:

Digital (PDF)

Searchability:

Searchable Text (typical for well-produced PDF manuals)

Print Quality

Print Readability:

High Quality (implied for dealer-level information)

Binding Type

Binding:

N/A (Digital Format)

Paper Type

Paper Quality:

N/A (Digital Format)

⚙️ Engine Specifications

Primary Engine

Engine Type:

Likely Air-Cooled, 4-Stroke Single-Cylinder (typical for these models)

Displacement Range:

Likely in the 50cc to 105cc range across the various models (e.g., C90 typically 90cc, S90/CL90/CD90 around 90cc, CT90 around 90-105cc). Exact displacement will be model-specific within the manual.

Performance

Horsepower Range:

Estimated 6-9 HP (typical for this class of engine, specific figures in manual)

Torque Range:

Estimated 5-7 lb-ft (typical for this class of engine, specific figures in manual)

Fuel System

Carburetion:

Likely Keihin or similar carburetor, specific model and size detailed in manual.

Fuel Type:

Unleaded Gasoline (specific octane rating in manual)

Ignition System

Ignition Type:

CDI (Capacitor Discharge Ignition) or breaker points ignition, depending on model year and variant. Detailed in manual.

Lubrication

Oil Type:

Motorcycle-specific 4-stroke engine oil (e.g., SAE 10W-30, SAE 20W-40). Specific API classification and viscosity grade will be in the manual.

Engine Component

Valve Train:

Overhead Valve (OHV) or Single Overhead Cam (SOHC), depending on specific model. Timing chain or belt details provided.

🔧 Transmission

Standard

Transmission Type:

Likely 3-speed, 4-speed, or 5-speed manual transmission, with some models featuring a dual-range gearbox (e.g., CT90). Specifics per model in manual.

Optional

Clutch Type:

Wet, multi-plate clutch. Details on removal, installation, and servicing.

Features

Gear Ratios:

Specific gear ratios for each model and transmission variant will be detailed in the manual.

Fluid Specifications

Transmission Oil Type:

Typically SAE 80 or 90 hypoid gear oil, or sometimes the same engine oil as used in the crankcase. Specifics provided in the manual.

📐 Dimensions

Exterior

Vehicle Type:

Motorcycles (various styles including street, scrambler, trail)

Weights

Dry Weight Range:

Approximately 70-100 kg (155-220 lbs), varying by model. Specific weight figures in manual.

🛡️ Safety Features

Ratings

Safety Standards:

Adherence to period safety standards of the manufacturing era. Manual will cover brake system maintenance for optimal safety.

Active Features

Braking System:

Drum brakes (front and rear) typically. Manual details adjustment, pad replacement, and fluid checks if applicable.

Passive Features

Lighting Electrical:

Wiring diagrams for headlights, taillights, turn signals, and other electrical safety components.

💡 Technology Features

Infotainment

Infotainment Systems:

N/A (These are classic motorcycles with mechanical systems, no digital infotainment).

Driver Assistance

Assistance Features:

N/A (Basic mechanical controls).

Connectivity

Connectivity Options:

N/A (No electronic connectivity features).

🔧 Maintenance

Service Intervals

Oil Change Interval:

Typically every 1,000-2,000 miles or 6 months, whichever comes first. Manual will provide exact intervals.

Spark Plug Replacement:

Intervals will vary, but generally between 3,000-6,000 miles. Manual provides specific recommendations and gap settings.

Valve Adjustment:

Recommended at intervals like 3,000-5,000 miles. Manual provides procedure and specifications.

Fluid Specifications

Brake Fluid:

If hydraulic brakes are present (unlikely for most drum brake systems on these models, but manual will clarify), typically DOT 3 or DOT 4. Manual will specify if applicable.

Fuel Type:

Unleaded gasoline. Octane rating and ethanol content recommendations will be in the manual.

Known Issues

Common Wear Items:

Carburetor cleaning/rebuilding due to age, electrical connectors and wiring degradation, wear on clutch plates, suspension component wear (shocks, bushings).

Engine Seals:

Oil seal deterioration leading to leaks. Manual covers seal replacement procedures.

📚 Vehicle History

Brand Heritage

Honda Motorcycles:

Honda is a renowned global manufacturer with a rich history in producing reliable and innovative motorcycles across a wide range of segments.

Model Evolution

Honda Cub Lineage:

The C90, CD90, CT90, and related models are descendants of the iconic Honda Super Cub, known for its durability, fuel efficiency, and ease of use, adapted for various purposes from urban commuting to off-road adventure (CT models).

Production

Production Era:

These models were primarily produced from the 1960s through the 1980s. Specific years covered by the manual are crucial and should be confirmed, but likely spans a significant portion of this period.

🏆 Awards & Recognition

Recognitions

Honda Super Cub Legacy:

While specific awards for C90/S90/CL90/CD90/CT90 models may not be widely publicized, they are part of the highly successful and globally recognized Honda Super Cub lineage, celebrated for reliability and pioneering design.