Honda CB250N & CB400N Super Dreams Owners Workshop Manual 1978-1984
Diagnostic procedures and component service for Honda CB250N & CB400N Super Dreams models, including engine, fuel system, ignition, frame, and wheels. Ref: ISBN 0 85696 893 5.
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Models Covered & Key Technical Specifications
Honda CB250N & CB400N Super Dreams Owners Workshop Manual - Maintenance, Troubleshooting & Repair (1978-1982) Technical-Repository
Honda CB250N & CB400N Super Dreams (0856968935) -- 1978-1984 Automotive Portfolio | Manual Division. Approved Net Mass: 167 kg establishes the overall operational weight for the CB250 model. Factory Scan Resolution: 1200 dpi is the maximum resolution for detailed diagram clarity. Primary Rotational Force: Not explicitly specified, but critical for engine function. General Play Limits: Exhaust valve clearance is specified at 0.10 mm for optimal performance. Essential Temperature Range: For optimal operation, 15-30C defines the environmental limit Framework. Operational Enclosure Specs: The crankcase requires a precise 0.020 mm clearance for proper bearing fit.
Professional Workshop Service Manual & Technical Specifications
Applied Performance Overhaul Manual: Motorcycle Official Honda CB250N & CB400N Super Dreams Workshop Manual - Maintenance, Troubleshooting & Repair (1978-1982) Technical-Repository
Serial-Range: Honda CB250N / CB400N Super Dreams (1978-1984) // Engineering-Metrics: Motorcycle / Engine Logic // Serial-Range: Detailed procedures and specifications.
| Specification | Technical-Path | Validation-Data |
|---|---|---|
| Engine Type | Twin-cylinder, air-cooled, 4-stroke | 249cc (CB250) / 395cc (CB400) |
| Ignition System | CDI | Retarded: 15° BTDC @ 1300 rpm / Advance: 45° BTDC |
| Front Fork Travel | Telescopic, hydraulically damped | 140 mm (5.5 in) |
| Rear Brake Type | Drum | Disc (CB250N only) |
| Oil Capacity | 2.2 litre (3.9 pint) / 2.3 litre (4.0 pint) | For engine oil and filter change |
Technical content addresses: Engine, Clutch and Gearbox; Fuel System and Lubrication; Ignition System; Frame and Forks; Wheels, Brakes and Tyres; Electrical System; and specific model variations from 1978 to 1984. Methodically requiring careful attention to detail, this manual documents torque specifications for engine components to ensure proper pivot-point integrity.
The document includes coverage of the engine, clutch, and gearbox systems, detailing removal, inspection, and reassembly of all major components.
Brake system specifications are included for both front and rear systems, covering hydraulic and mechanical aspects.
Safety procedures are documented for general workshop practices and specific component handling.
Fluid capacities are listed for engine oil, front forks, and brake systems.
Tool requirements are listed for various procedures, including specialized tools for engine and brake work.
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