Segment:
Cruiser Motorcycle
Target Audience:
Owners and independent mechanics seeking detailed repair and maintenance information for the Yamaha Virago XV920R.
Competitors:
Honda Shadow series, Kawasaki Vulcan series, Suzuki Intruder series of the early 1980s.
Distinctive Features:
Revolutionary shaft drive for its class, V-twin engine configuration, stylish cruiser aesthetics, comfortable riding position.
Value:
Provides essential technical data and procedures crucial for maintaining and repairing a classic motorcycle, saving on dealership service costs.
Engine:
V-twin, 4-stroke, SOHC, air-cooled engine disassembly, assembly, troubleshooting, diagnostics
Fuel System:
Carburetor service (Mikuni VM), fuel tank, fuel pump, fuel lines, troubleshooting
Ignition System:
CDI ignition, spark plugs, coils, timing, troubleshooting
Transmission:
5-speed constant mesh, clutch operation and adjustment, gear inspection, lubrication
Drivetrain:
Shaft drive system, universal joints, final drive housing, maintenance
Suspension:
Front telescopic fork overhaul, rear monoshock suspension adjustment and servicing
Brakes:
Front disc brake, rear drum brake, hydraulic system, pad replacement, caliper service, bleeding
Electrical System:
Wiring diagrams, battery maintenance, lighting, starter motor, charging system (alternator, regulator/rectifier), fuses, relays
Cooling System:
Air-cooled system specific maintenance and checks
Exhaust System:
Muffler, headers, gaskets, inspection
Frame And Bodywork:
Frame inspection, body panel removal and installation, seat, tank, fenders
Wheels And Tires:
Wheel bearing inspection, tire pressure, tire replacement, spoke tensioning (if applicable)
Maintenance:
Oil changes, filter replacement, air filter cleaning/replacement, spark plug checks, chain adjustment (if applicable - though shaft drive), lubrication points, brake adjustments
Troubleshooting:
Detailed diagnostic flowcharts and symptom-based troubleshooting for common issues
Repair:
Step-by-step instructions for component disassembly, repair, and reassembly
Rebuilds:
Engine, carburetor, and suspension component rebuild procedures
Adjustments:
Carburetor synchronization, idle speed, valve clearance (if adjustable), clutch and brake lever adjustments
Torquing:
Critical fastener torque specifications for engine, chassis, and body components
Depth:
Comprehensive: Covers routine maintenance to complete engine and chassis overhauls, including detailed diagnostic procedures.
Engine Type:
Air-cooled, 4-stroke, V-twin
Displacement:
920 cc (920 cubic centimeters)
Bore X Stroke:
82.0 mm x 88.0 mm (approximate, refer to manual for exact)
Valve Train:
SOHC (Single Overhead Camshaft), 2 valves per cylinder
Compression Ratio:
8.4:1 (typical, verify in manual)
Horsepower:
Approximately 50-55 HP (at crankshaft, varies by tuning and exact model year, refer to manual for precise figures)
Torque:
Approximately 70 Nm (at crankshaft, varies by tuning and exact model year, refer to manual for precise figures)
Carburetion:
Dual Mikuni VM34SS constant velocity carburetors
Fuel Type:
Unleaded gasoline (minimum Octane rating as specified in manual, likely 87 or higher)
Oil Type:
API SE, SF, SG or higher, SAE 10W-40 or 20W-50 (refer to manual for specific viscosity range based on ambient temperature)
Oil Capacity:
Approx. 2.4 Liters (without filter change), Approx. 2.6 Liters (with filter change) - CONFIRM IN MANUAL
Ignition System Type:
Transistor Controlled Ignition (TCI) / CDI
Spark Plugs:
NGK DR8ES-L or equivalent (confirm exact part number in manual)
Spark Plug Gap:
0.7 - 0.8 mm (0.028 - 0.031 in) - CONFIRM IN MANUAL
Overall Length:
Approx. 2,235 mm (88.0 in) - CONFIRM IN MANUAL
Overall Width:
Approx. 820 mm (32.3 in) - CONFIRM IN MANUAL
Overall Height:
Approx. 1,220 mm (48.0 in) - CONFIRM IN MANUAL
Dry Weight:
Approx. 196 kg (432 lbs) - CONFIRM IN MANUAL
Wet Weight:
Approx. 212 kg (467 lbs) - CONFIRM IN MANUAL
Payload Capacity:
Refer to manual for specific rider and luggage weight limits.
Oil Change Interval:
Every 4,000 km (2,500 miles) or 6 months, whichever comes first (refer to manual for exact recommendations).
Air Filter Cleaning:
Every 4,000 km (2,500 miles) or annually. Replacement as needed.
Spark Plug Replacement:
Every 10,000 km (6,000 miles) or as indicated by inspection (refer to manual).
Valve Clearance Check:
Every 8,000 km (5,000 miles) or as per manual recommendations.
Brake Fluid:
DOT 3 or DOT 4 hydraulic brake fluid (refer to manual for precise specification and type).
Final Drive Oil:
Yamaha Hypoid Gear Oil SAE 80W-90 (or equivalent API GL-5) - CONFIRM IN MANUAL
Common Wear Items:
Carburetor diaphragm wear, clutch wear, voltage regulator/rectifier failures (common on electronics of this era), fork seal leaks.
Shaft Drive Maintenance:
Regular lubrication of the splines is crucial to prevent seizing and wear.
Brand Focus:
Yamaha Motor Company, established in 1955, known for a wide range of motorcycles, musical instruments, and other motorized products.
Virago Introduction:
The Virago line, introduced in the early 1980s, was Yamaha's significant entry into the cruiser market, characterized by its modern styling and technology for the time.
Xv920R Significance:
The XV920R was a foundational model, showcasing Yamaha's V-twin cruiser design and the innovative shaft drive system.
Production Period:
1981-1982 for the XV920R model. Subsequent Virago models (XV700, XV1000, XV1100) continued the line with evolutionary changes.
Manufacturing Origin:
Japan