Target Audience:
Yamaha SZR660 owners, independent motorcycle repair shops, and DIY enthusiasts.
Value Proposition:
Provides dealership-level repair information for DIY and professional mechanics, enabling cost-effective maintenance and repairs.
Competitor Manuals:
This manual is designed to be as comprehensive as the original Yamaha factory service manual, offering superior detail compared to generic repair guides.
Authenticity:
Vehicle-specific information, not generic, mirroring the content used by authorized technicians.
Completeness:
A-Z coverage for all models and repairs within the specified production years.
Accessibility:
Instant download for immediate access to critical repair data.
Engine:
Complete engine disassembly, assembly, diagnostics, tuning, and specifications.
Transmission:
Gearbox, clutch, shifting mechanisms, lubrication, and troubleshooting.
Fuel System:
Carburetor(s) (likely Mikuni), fuel pump, fuel lines, filters, and tuning.
Ignition System:
CDI, ignition timing, spark plugs, coils, and wiring diagrams.
Cooling System:
Radiator, fan, hoses, coolant specifications, and thermostat.
Electrical System:
Battery, charging system (stator, regulator/rectifier), starter motor, lighting, instrumentation, and wiring diagrams.
Frame And Suspension:
Frame inspection, fork overhaul, rear shock absorber service, linkages, and adjustments.
Brakes:
Hydraulic brake system, caliper service, master cylinder, brake fluid specifications, bleeding procedures, and disc/pad replacement.
Wheels And Tires:
Tire pressure, wheel bearing service, spoke tensioning, and recommended tire sizes.
Exhaust System:
Muffler and pipe inspection, gasket replacement, and tightening procedures.
Bodywork And Fairings:
Fairing removal and installation, seat service, and minor body repairs.
Routine Maintenance:
Oil changes, filter replacements, chain adjustment, lubrication points, and general inspection.
Troubleshooting Guides:
Systematic diagnosis of common problems with step-by-step solutions.
Disassembly And Assembly:
Detailed instructions for taking apart and reassembling major components.
Rebuild Procedures:
Complete rebuild guides for engine, carburetor, and suspension components.
Adjustments:
Carburetor synchronization, valve clearance, chain tension, and brake lever adjustments.
Wiring Diagrams:
Comprehensive electrical schematics for accurate troubleshooting and repair.
Depth Of Information:
Comprehensive, covering everything from basic user maintenance to complete engine and transmission rebuilds.
Diagnostic Capabilities:
Advanced diagnostic procedures and fault code interpretation (if applicable to the era's technology).
Component Specifications:
Detailed torque values, clearances, tolerances, and material specifications.
Engine Type:
Liquid-cooled, 4-stroke, DOHC, 5-valve, Parallel-twin
Engine Displacement:
660 cc
Bore X Stroke:
71.0 mm x 82.0 mm (typical for this engine family)
Compression Ratio:
9.0:1 (typical)
Horsepower:
Approximately 46-50 HP @ 6000 RPM (estimated, varies by market and tuning)
Torque:
Approximately 5.6 kg-m (55 Nm) @ 4500 RPM (estimated)
Carburetor Type:
Twin Mikuni CV (Constant Velocity) carburetors (e.g., Mikuni BSR34 or similar)
Fuel Capacity:
Approximately 15 Liters (3.9 US gallons)
Oil Capacity With Filter:
Approximately 2.3 Liters (2.4 US quarts)
Recommended Oil Grade:
Yamalube 10W-40 or equivalent API SG/SH/SJ or JASO MA.
Oil Change Interval:
Every 6,000 km (3,700 miles) or 6 months, whichever comes first.
Air Filter Cleaning:
Every 6,000 km (3,700 miles), clean and re-oil if necessary.
Spark Plug Replacement:
Every 12,000 km (7,500 miles) or as needed based on inspection.
Valve Clearance Check:
Every 12,000 km (7,500 miles).
Chain Lubrication Adjustment:
Every 1,000 km (600 miles) or after washing/rain.
Coolant:
Yamaha Coolant or a 50/50 mix of ethylene glycol and distilled water.
Common Wear Items:
Cam chain tensioner (can become noisy), regulator/rectifier (prone to failure in some Yamaha models of this era), carburetor jetting sensitivity to altitude and modifications.
Preventative Maintenance:
Regular cleaning of the air filter and correct chain adjustment are crucial for engine longevity.