Positioning:
Performance-oriented middleweight sportbike, positioned as a more accessible alternative to larger displacement sportbikes of its era.
Competitors:
Competed against other 600cc class sportbikes and performance-oriented motorcycles from manufacturers like Honda, Kawasaki, Suzuki, and Ducati.
Engine Type:
Single-cylinder, four-stroke, liquid-cooled, DOHC
Design Philosophy:
Focus on nimble handling and accessible performance for a wide range of riders.
Primary Focus:
Workshop Service & Repair
Secondary Focus:
Maintenance, Diagnostics, Troubleshooting, Electrical Systems
Type:
Factory Original Workshop Service Repair Manual
Compatibility:
All Versions of Windows & Mac
Reader Requirement:
Adobe PDF Reader
Engine:
Complete Engine Overhaul, Assembly, Disassembly, Carburetor, Valves, Ignition, Lubrication
Power Supply:
Charging System, Battery, Alternator, Starter Motor
Cooling System:
Radiator, Fan, Hoses, Thermostat, Coolant Specifications
Fuel System:
Fuel Tank, Fuel Pump, Fuel Lines, Carburetor Tuning and Servicing (Mikuni BST34 Twin Carburetors)
Braking System:
Front and Rear Brake Calipers, Master Cylinders, Brake Lines, Pads, Fluid Specifications, Bleeding Procedures
Suspensions:
Front Forks (Oil Level, Seals, Spring Preload), Rear Shock Absorber (Adjustments, Rebuild)
Chassis:
Frame, Swingarm, Bearings, Fasteners, General Chassis Inspection
Electrical System:
Wiring Diagrams, Lighting System, Ignition System, Battery Charging, Horn, Switches, Fuses, Indicators
Bodywork:
Fairings, Seat, Fuel Tank Cover, Fenders, Component Removal and Installation
Maintenance:
Regular Service Checks, Lubrication Points, Filter Replacements, Spark Plug Replacement, Chain Adjustment
Troubleshooting:
Systematic Diagnostic Procedures for Common Problems, Fault Finding Guides
Repair:
Detailed Step-by-Step Repair Instructions for all Major Components
Diagnostics:
Diagnostic Flowcharts and Procedures for Identifying Issues
Special Tools:
Identification and Usage of Specific Tools Required for Servicing
Depth:
Comprehensive, Suitable for Professional Technicians and Advanced DIY Mechanics
Engine Code:
4BP (typical for the 3LD/3TB engine family)
Bore X Stroke:
100 mm x 84 mm
Valve Train:
DOHC, 4 valves per cylinder
Cooling System:
Liquid-cooled
Horsepower:
Approximately 48-50 HP (claimed)
Torque:
Approximately 57 Nm (claimed)
Carburetion:
Twin Mikuni BST34 CV carburetors
Fuel Type:
Unleaded gasoline
Ignition System:
CDI (Capacitor Discharge Ignition)
Lubrication System:
Wet Sump
Infotainment System:
N/A (Basic motorcycle instrumentation)
Assistance Features:
N/A (No electronic rider aids like ABS or traction control)
Instrument Cluster:
Analog speedometer, tachometer, odometer, trip meter, neutral indicator, high-beam indicator, turn signal indicators.
Oil Change Interval:
Typically every 3,000-5,000 km or 6 months, refer to manual for specifics.
Air Filter Cleaning Replacement:
Check every 6,000 km, clean or replace as needed.
Spark Plug Replacement:
Typically every 10,000-15,000 km, check manual for exact type and gap.
Chain Maintenance:
Lubricate and adjust chain every 1,000 km or after riding in wet conditions.
Engine Oil Type:
API SG, JASO MA certified 10W-40 or 20W-50 (refer to manual for precise recommendation)
Engine Oil Capacity:
Approximately 2.4 Liters (without filter change), 2.6 Liters (with filter change)
Coolant Type:
Ethylene glycol-based antifreeze coolant (50% mixture with distilled water)
Common Wear Items:
Carburetor synchronization and jetting, clutch wear, fork seals, exhaust system corrosion, potential electrical connector issues.
Single Cylinder Characteristics:
Higher vibration levels than multi-cylinder bikes, which can lead to loosening of fasteners over time if not properly maintained.
Heritage:
Yamaha Corporation is a Japanese multinational corporation known for its wide range of products, including motorcycles, musical instruments, and power equipment. Yamaha motorcycles have a long history of performance and innovation.
Predecessors:
The SZR 660 drew inspiration from Yamaha's successful single-cylinder models and was part of the evolution of sportbike design, adapting to the demand for accessible performance.
Lineage:
Shared engine technology with other Yamaha models like the TDM and XTZ series (though often in different states of tune).
Production Years:
Produced from the early to mid-1990s, with the 1995 model being a key representation of this generation.
Manufacturing Location:
Japan (typical for Yamaha motorcycles of this era)