Market Position:
The Yamaha V Star 650 (XVS650) was positioned as a mid-size, accessible cruiser, appealing to riders seeking classic styling and a comfortable riding experience without the bulk and complexity of larger V-twins. It competed in a segment with models like the Honda Shadow 600/750 and Kawasaki Vulcan 750.
Competitive Analysis:
Key competitive advantages included its reliable shaft drive, V-twin engine character, and Yamaha's reputation for build quality. The manual provides the tools to maintain this reliability.
Key Features:
The manual's key feature is its comprehensive nature, covering all aspects of maintenance and repair, making it invaluable for owners wanting to perform their own service or understand professional service procedures. The inclusion of detailed diagrams and troubleshooting sections significantly enhances its utility.
Engine:
Internal engine components, fuel system, ignition system, lubrication, cooling (air-cooled specifics).
Transmission:
Gearbox operation, clutch, shifting mechanism, lubrication.
Chassis:
Frame, suspension (front fork, rear shock absorber), steering, wheels, tires.
Brakes:
Front and rear brake system inspection, maintenance, and repair (likely hydraulic disc front, drum rear).
Electrical:
Wiring diagrams, battery, charging system (alternator), lighting, ignition, starter motor, instrumentation.
Fuel System:
Carburetor disassembly, cleaning, adjustment (likely twin Mikuni CV carburetors), fuel tank, fuel lines.
Exhaust System:
Exhaust pipes, mufflers, mounting.
Bodywork:
Fenders, fuel tank, seat, handlebars, fenders, body panels, trim components.
Cooling System:
Air-cooled engine thermal management details.
Routine Maintenance:
Oil changes, filter replacement, chain adjustment, brake pad inspection, spark plug replacement, air filter cleaning/replacement.
Troubleshooting:
Diagnostic flowcharts and symptom-based problem-solving for common issues.
Engine Overhaul:
Top-end rebuild (cylinder head, valves), bottom-end rebuild (crankshaft, connecting rods), piston and ring replacement.
Transmission Repair:
Clutch replacement, gearbox component inspection and replacement.
Carburetor Rebuild:
Detailed instructions for disassembly, cleaning, reassembly, and adjustment of the CV carburetors.
Electrical Diagnostics:
Troubleshooting starting issues, charging problems, lighting malfunctions using wiring diagrams.
Suspension Service:
Fork seal replacement, rear shock absorber inspection and potential servicing (if applicable).
Brake Service:
Brake fluid flush, caliper maintenance, pad replacement, drum shoe inspection.
Wheel And Tire:
Tire replacement, wheel bearing inspection, spoke tensioning (if applicable).
Torque Specifications:
Critical torque values for all fasteners and assemblies.
Technical Depth:
Comprehensive from basic owner maintenance to full engine and transmission rebuilds. Includes detailed component diagrams, service data, and diagnostic procedures.
Engine Type:
Air-cooled, 4-stroke, SOHC, V-twin
Displacement:
649 cc (39.6 cubic inches)
Bore X Stroke:
81.0 mm x 63.1 mm (approximate)
Compression Ratio:
9.0:1 (typical for these models)
Horsepower:
Approximately 40-45 HP (at crankshaft)
Torque:
Approximately 37-40 lb-ft (at crankshaft)
Carburetion:
Dual Mikuni 37mm constant velocity (CV) carburetors
Fuel Delivery:
Gravity feed from fuel tank to carburetors
Ignition Type:
Digital CDI (Capacitor Discharge Ignition)
Oil Type:
Yamalube 4 (or equivalent API SG, SAE 20W-40 motorcycle oil)
Oil Capacity:
Approx. 3.2 Liters (3.4 US qt) with filter change
Infotainment Features:
Basic instrumentation (speedometer, tachometer, odometer, fuel gauge). No advanced infotainment systems present.
Driver Assistance Features:
N/A. Focus is on rider control and feedback.
Connectivity Features:
N/A. No Bluetooth, USB, or smartphone integration.
Oil Change Interval:
Every 3,000 miles or 6 months, whichever comes first.
Air Filter Maintenance:
Inspect every 3,000 miles; clean or replace as needed. Replace every 18,000 miles.
Spark Plug Replacement:
Every 6,000 miles or 12 months. (NGK CR9E or equivalent recommended)
Drive Shaft Lubrication:
Lubricate splines every 6,000 miles or annually. Use Yamaha marine grease or equivalent.
Brake Fluid Flush:
Every 12,000 miles or 24 months. Use DOT 4 brake fluid.
Valve Clearance Check:
Every 12,000 miles or 24 months. (Intake: 0.09-0.13 mm; Exhaust: 0.13-0.17 mm)
Engine Oil Specification:
Yamalube 4 (or equivalent API SG, SAE 20W-40 motorcycle oil)
Transmission Oil Specification:
Yamalube Gear Oil (or equivalent SAE 80 API GL-4)
Brake Fluid Specification:
DOT 4
Known Issues:
Carburetor synchronization and adjustment can be crucial for smooth operation. Early models might experience regulator/rectifier issues. Cam chain tensioner wear can occur over time, leading to rattling noises. General wear and tear on suspension components and brake systems are common for bikes of this age.
Brand Heritage:
Yamaha has a long-standing heritage in motorcycle manufacturing, known for innovation, performance, and reliability across various motorcycle segments, including cruisers.
Model Evolution:
The V Star 650 was introduced as a successor to Yamaha's Virago line, offering a more classic cruiser aesthetic. It remained largely unchanged mechanically during this 1998-2002 period, with styling variations (Custom, Classic) being the primary differentiators. Later models would see minor updates but the core platform remained robust.
Production Locations:
Primarily manufactured in Japan, though assembly might have occurred in other Yamaha facilities globally.