Segment:
Naked sportbike (FZ8) and faired sport-touring variant (FZ8S). Competes in the 800cc to 1000cc naked and sport-touring segments.
Rivals:
Kawasaki Z800, Suzuki GSR750, Triumph Street Triple, Ducati Monster 821, MV Agusta Brutale 800.
Features:
Versatile performance suitable for commuting, sport riding, and light touring. Known for its torquey and tractable 779cc inline-four engine, comfortable riding position, and user-friendly handling.
Target Audience:
Riders seeking a blend of performance, comfort, and everyday usability. Suitable for experienced riders and those upgrading from smaller displacement bikes.
Powertrain:
Engine disassembly, assembly, inspection, troubleshooting, performance tuning, fuel injection system, ignition system, exhaust system, cooling system, lubrication system.
Chassis:
Front suspension (forks, steering system), rear suspension (shock absorber, swingarm, linkage), braking system (front and rear calipers, discs, master cylinders, ABS if applicable), wheel and tire specifications, frame inspection and repair.
Electrical:
Wiring diagrams, battery, charging system (stator, rectifier/regulator), lighting system, instrumentation, ignition switch, starter motor, ECU, sensors, fault code diagnosis, electrical component testing.
Bodywork:
Fairings, seats, fuel tank, fenders, mirrors, luggage options (if applicable), body panel removal and installation.
Maintenance:
Regular service intervals, oil and filter changes, spark plug replacement, air filter cleaning/replacement, chain adjustment and lubrication, brake fluid replacement, coolant flush and replacement, valve clearance checks and adjustment.
Repair:
Engine rebuilds, transmission overhauls, suspension fork rebuilds, brake system bleeding and component replacement, electrical fault diagnosis and repair, fuel system component testing and replacement.
Troubleshooting:
Diagnostic procedures for common and uncommon issues, symptom-based troubleshooting guides, fault code interpretations.
Depth:
Comprehensive from basic maintenance and adjustments to complete engine teardowns, diagnostics, and component-level repair. Includes detailed torque specifications, clearances, and testing procedures.
Engine Type:
Liquid-cooled, 4-stroke, DOHC, 4-valve inline-four
Bore X Stroke:
74.0 mm x 48.0 mm
Compression Ratio:
12.0:1
Horsepower:
Approx. 106 HP @ 10,000 rpm
Torque:
Approx. 85 Nm (62.7 lb-ft) @ 8,000 rpm
Fuel Delivery:
Fuel injection (Yamaha's Electronic Fuel Injection - YCC-FI)
Fuel Type:
Unleaded gasoline, minimum 91 octane
Coolant Type:
Yamaha-recommended permanent antifreeze (ethylene glycol based), 50/50 mixture with distilled water.
Oil Type:
Yamalube 4S (or equivalent SAE 10W-40, API SG or higher, JASO MA)
Oil Change With Filter:
3.4 Liters (3.6 US qt)
Oil Change Without Filter:
3.0 Liters (3.2 US qt)
Spark Plugs:
NGK CR9E or DENSO U27ETR
Instrumentation:
Multi-function LCD display including speedometer, tachometer, fuel gauge, clock, odometer, trip meters, gear position indicator, and diagnostic fault codes.
ABS:
Available as an option on many models, enhancing braking safety.
Accessories:
Pre-wired for accessory power outlets, allowing for charging devices or powering accessories.
Oil Filter Change:
Every 10,000 km (6,000 miles) or 12 months, whichever comes first.
Air Filter Inspection:
Every 10,000 km (6,000 miles).
Spark Plug Replacement:
Every 20,000 km (12,000 miles).
Valve Clearance Check:
Every 40,000 km (24,000 miles).
Brake Fluid Replacement:
Every 2 years or as needed.
Coolant Replacement:
Every 2 years or 40,000 km (24,000 miles).
Fork Oil Type:
Yamaha No. 10 fork oil (or SAE 10W equivalent)
Fork Oil Level:
120 mm (4.72 in) from top of inner tube with spring removed and outer tube fully compressed.
Common Problems:
While generally reliable, some owners report occasional issues with the fuel pump, voltage regulator/rectifier, and a tendency for chain and sprockets to wear faster than ideal if not maintained diligently. Some stator failures have been reported.
Recommendations:
Regular chain lubrication and adjustment, checking electrical connections, and ensuring proper coolant levels are crucial for long-term reliability.
Heritage:
Yamaha Motor Company, founded in 1955, has a rich heritage in motorcycle manufacturing, known for its innovation, performance, and reliability across various motorcycle categories.
Development:
The FZ8 and FZ8S were introduced as an evolution of the FZ6R and FZ1 models, aiming to fill the gap in Yamaha's naked and sport-touring lineup with a versatile 800cc inline-four.
Production Years:
2010-2016 (worldwide, with variations in market availability and naming conventions).
Manufacturing Location:
Japan (primarily, with global distribution).
