Segment:
Mid-size, twin-cylinder cruiser/standard motorcycle, popular in the late 1970s and early 1980s for its reliable performance and accessible price point.
Competitors:
Honda CB400/CB450, Yamaha XS400/XS500, Suzuki GS400/GS450.
Features:
Parallel-twin engine, chain drive, electric start (on most models), comfortable riding position, simple and robust mechanics.
Usability:
Designed for both amateur DIY mechanics and professional technicians, enabling self-sufficient maintenance and repairs. Search functionality enhances quick access to information.
Engine:
Engine assembly, disassembly, tuning, lubrication, cooling system (if applicable), valve adjustment, piston/cylinder inspection, crankshaft and connecting rod service.
Transmission:
Gearbox operation, clutch service, shift mechanism, transmission bearing replacement, transmission fluid checks.
Fuel System:
Carburetor identification, adjustment, overhaul, fuel tank maintenance, fuel pump operation (if equipped), fuel filter replacement.
Electrical System:
Ignition system troubleshooting, spark plugs, battery maintenance, charging system (alternator, regulator/rectifier), lighting circuits, starter motor, wiring diagrams.
Brakes:
Brake system inspection, hydraulic system bleeding, brake pad/shoe replacement, caliper/drum service, brake fluid specifications.
Suspension:
Front fork service (oil change, seal replacement), rear shock absorber inspection and replacement, swingarm maintenance.
Chassis And Bodywork:
Frame inspection, wheel bearing service, steering head bearing maintenance, seat and body panel removal/installation.
Routine Maintenance:
Oil changes, filter replacements, chain adjustment, brake adjustments, tire pressure checks, spark plug replacement, air filter cleaning/replacement.
Troubleshooting:
Diagnostic procedures for common starting issues, running problems, electrical faults, and mechanical failures. Symptom-based troubleshooting guides.
Disassembly And Reassembly:
Step-by-step instructions for dismantling and reassembling major motorcycle components for repair and overhaul.
Special Tool Requirements:
Identification and usage of specific tools required for certain repair procedures.
Depth Of Coverage:
Detailed diagnostic information, complete rebuild procedures, and in-depth theoretical explanations of system operation.
Engine Type:
Air-cooled, four-stroke, parallel-twin
Displacement:
440cc (approx.)
Bore X Stroke:
Variable by sub-model (e.g., 66.0 mm x 64.2 mm for some variants)
Compression Ratio:
Variable by sub-model (e.g., 9.0:1 to 9.7:1)
Horsepower:
Typically around 35-40 HP at 7,500-8,000 RPM (varies by sub-model and tuning)
Torque:
Typically around 26-29 lb-ft at 6,000-6,500 RPM (varies by sub-model)
Carburetion:
Dual Mikuni VM series carburetors (e.g., VM26SS or VM28SS, depending on year and model variant)
Fuel Tank Capacity:
Approximately 13-15 Liters (3.4-4.0 US gallons)
Length:
Variable by sub-model (e.g., ~2100-2200 mm / ~83-87 inches)
Width:
Variable by sub-model (e.g., ~750-850 mm / ~30-33 inches)
Height:
Variable by sub-model (e.g., ~1150-1250 mm / ~45-49 inches)
Dry Weight:
Approximately 170-185 kg (375-408 lbs) (varies by sub-model)
Safety Standards:
Subject to period safety regulations applicable in manufacturing and sales regions.
Braking System:
Front: Single disc brake; Rear: Drum brake (typical, variations may exist). ABS not available.
Lighting:
Halogen headlamp, taillight, brake light, turn signals.
Features:
Basic analog instrumentation: speedometer, tachometer, odometer, trip meter, turn signal indicators, neutral indicator, high-beam indicator.
Assistance Systems:
None (This is a motorcycle from the early 1980s).
Connectivity Features:
None (This is a motorcycle from the early 1980s).
Oil Change Interval:
Typically every 3,000-5,000 km (2,000-3,000 miles) or 6-12 months, whichever comes first.
Valve Adjustment Interval:
Typically every 6,000-10,000 km (4,000-6,000 miles).
Chain Lubrication Adjustment:
Lubricate every 500-1000 km (300-600 miles), adjust slack every 1000-2000 km (600-1200 miles) or as needed.
Engine Oil Type:
API SE or SF, SAE 10W-40 or 20W-50 (refer to manual for specific viscosity based on ambient temperature).
Engine Oil Capacity:
Approximately 2.0-2.5 Liters (2.1-2.6 US quarts) with filter change.
Brake Fluid Type:
DOT 3 or DOT 4 hydraulic brake fluid (check manual for specific recommendation).
Common Wear Items:
Carburetor diaphragm degradation, stator/rotor issues (charging system), fork seal leaks, cam chain noise, exhaust system corrosion.
Performance Concerns:
Carburetors may require periodic synchronization and cleaning. Ignition system components can degrade over time.
Manufacturer:
Kawasaki Heavy Industries Motorcycle & Engine Company, a renowned Japanese manufacturer of motorcycles, powersports vehicles, and industrial equipment.
Model Lineage:
Part of Kawasaki's successful KZ series, known for their parallel-twin engines that offered a balance of performance and simplicity. Evolved from earlier 300-400cc models.
Production Years:
Approximately 1980-1983 (exact years may vary by market and specific sub-model designation like KZ440A/B).
