Segment:
Cruiser Motorcycle
Target Audience:
Yamaha Virago XV920 owners, DIY enthusiasts, professional motorcycle mechanics.
Rivals:
Honda Shadow, Kawasaki Vulcan, Suzuki Intruder (contemporary models).
Design Philosophy:
Emphasis on a relaxed riding position, V-twin torque, and classic styling.
Manual Advantage:
Provides authoritative, detailed guidance for maintaining and repairing the specific model range, ensuring correct procedures are followed.
Engine Mechanical:
Engine disassembly, assembly, inspection, specifications, valve train, piston, crankshaft, lubrication system, cooling system (air-cooled), internal component repair.
Fuel System:
Carburetor overhaul, adjustment, fuel tank, fuel lines, fuel pump (if applicable), fuel filter replacement.
Ignition System:
CDI unit, ignition coils, spark plugs, timing procedures, troubleshooting.
Drivetrain:
Clutch operation, inspection, adjustment, gearbox disassembly/assembly, final drive (shaft drive) inspection and maintenance.
Chassis Suspension:
Front fork disassembly, assembly, oil change, rear shock absorber inspection and replacement, swingarm maintenance.
Brakes:
Front and rear brake system inspection, hydraulic component servicing, pad/shoe replacement, bleeding procedures, disc/drum maintenance.
Electrical System:
Wiring diagrams, battery maintenance, charging system (stator, regulator/rectifier), lighting system, starter motor, ignition switch, troubleshooting electrical faults.
Bodywork Frame:
Frame inspection, seat removal/installation, fuel tank removal/installation, fender and panel fitting, minor bodywork repair guidance.
Maintenance:
Routine checks, lubrication, filter changes, fluid level checks, periodic inspections, valve clearance adjustment.
Troubleshooting:
Systematic diagnostic procedures for common and uncommon issues, fault finding charts, symptom analysis.
Repair Overhaul:
Step-by-step instructions for disassembling, inspecting, repairing, and reassembling all major vehicle components.
Adjustment:
Carburetor synchronization, clutch adjustment, brake lever adjustment, throttle cable adjustment, suspension settings.
Installation Removal:
Detailed procedures for removing and installing major components, ensuring correct methods and tool usage.
Depth:
Comprehensive, from basic maintenance to full engine and transmission rebuilds. Includes detailed specifications and diagnostic information.
Diagnostic Focus:
Emphasis on diagnosing issues through logical steps and referencing service data.
Pictorial Representation:
Richly illustrated with diagrams, exploded views, and photos for clear procedural guidance.
Engine Configuration:
Air-cooled, 70-degree V-twin
Bore X Stroke:
92 mm x 79 mm (typical for 920cc)
Valve Train:
SOHC, 2 valves per cylinder
Horsepower:
Approx. 65-70 HP (at crankshaft, estimated for the era)
Torque:
Approx. 75-80 Nm (at crankshaft, estimated for the era)
Carburetion:
Dual Mikuni VM34SS constant velocity carburetors (typical for this model)
Fuel Type:
Unleaded gasoline (research specific octane rating in manual)
Oil Change Interval:
Refer to periodic maintenance chart in manual (typically 3,000-5,000 km or annually)
Valve Adjustment Interval:
Refer to periodic maintenance chart in manual (typically 10,000-15,000 km)
Engine Oil Type:
Yamalube or equivalent SAE 20W-40 or 10W-40 API SE or SF (verify in manual)
Engine Oil Capacity:
Approx. 2.5-3.0 Liters (with filter change, verify in manual)
Brake Fluid Type:
DOT 3 or DOT 4 (verify in manual)
Fork Oil Type:
Yamaha Fork Oil 10W or equivalent (verify in manual)
Common Wear Items:
Carburetor diaphragm cracks, aging fuel lines, clutch wear, fork seal leaks, charging system issues (regulator/rectifier).
Maintenance Importance:
Regular maintenance is crucial for preserving the performance and longevity of this vintage motorcycle.
Manufacturer:
Yamaha Motor Corporation, Japan
Introduction:
The XV920 Virago was Yamaha's entry into the cruiser market, introducing a shaft-driven V-twin in a distinctive styling package.
Virago Lineage:
Established the foundation for the popular Virago line, which saw significant updates and displacements in subsequent years (e.g., XV1000, XV750, XV1100).
Production Years:
1981-1983 (for XV920 model)
Manufacturing Location:
Japan (assumed)
