Engine Mechanical:
Complete engine disassembly, assembly, inspection, and repair procedures for all internal components (pistons, rings, cylinders, crankshaft, connecting rods, valves, camshafts, timing).
Fuel System:
Carburetor inspection, cleaning, adjustment, and rebuilding; fuel pump, fuel lines, and fuel tank maintenance.
Ignition System:
Ignition coil testing, spark plug specifications, CDI unit diagnostics, timing adjustments.
Cooling System:
Radiator, water pump, thermostat, coolant specifications, and flushing procedures.
Transmission And Drivetrain:
Clutch inspection and adjustment, gearbox disassembly and assembly, final drive inspection and lubrication, chain and sprocket maintenance.
Suspension System:
Front fork (telescopic, cartridge type) disassembly, service, and adjustment; rear shock absorber inspection and replacement; swingarm and linkage maintenance.
Braking System:
Front and rear disc brake caliper inspection, pad replacement, hydraulic system bleeding, master cylinder service, rotor specifications.
Electrical System:
Wiring diagrams, charging system (stator, rectifier/regulator), starter motor, battery specifications, lighting system troubleshooting, fuses, relays.
Chassis And Frame:
Frame inspection, steering head bearing service, wheel bearing inspection and replacement.
Bodywork And Fairings:
Removal and installation of fairings, seat, fuel tank, and other body panels.
Routine Maintenance:
Oil changes, filter replacements, chain lubrication and adjustment, spark plug checks, tire pressure, brake fluid checks, coolant checks.
Troubleshooting Guides:
Diagnostic procedures for common starting, running, and electrical issues with detailed symptom analysis and corrective actions.
Complete Disassembly Assembly:
Step-by-step instructions for taking the motorcycle apart and putting it back together for major component overhauls.
Component Rebuilding:
Detailed guides for rebuilding carburetors, brake master cylinders, water pumps, and other serviceable components.
Technical Specifications And Data:
Torque values for all fasteners, engine timing, valve clearances, fluid capacities, electrical component resistance values.
Wiring Diagrams:
Comprehensive electrical system schematics for accurate troubleshooting and component identification.
Carburetor Sync And Adjustment:
Detailed steps for synchronizing the four carburetors to ensure smooth engine operation and optimal performance.
Suspension Tuning And Rebuilding:
Instructions for adjusting suspension settings and performing internal maintenance on the front forks and rear shock.
Wheel And Tire Service:
Procedures for tire removal and installation, wheel balancing, and wheel bearing replacement.
Frame And Steering Head Maintenance:
Guidance on servicing steering head bearings and inspecting the frame for integrity.
Cooling System Maintenance:
Steps for draining, flushing, refilling, and bleeding the cooling system.
Exhaust System Service:
Information on exhaust pipe removal, installation, and muffler maintenance.
Technical Depth:
Comprehensive (covers basic maintenance through complete engine rebuilds and advanced diagnostics).
Component Diagnostics:
In-depth diagnostic flowcharts and symptom-based troubleshooting for electrical and mechanical issues.
Special Tool Identification:
Likely lists required Yamaha special tools for specific procedures.
Torque Specifications:
Extensive list of torque specifications for critical fasteners throughout the motorcycle.
Manual Completeness:
Comprehensive factory service manual, offering complete coverage for all repair and maintenance aspects.
Engine Type:
4-stroke, liquid-cooled, DOHC, inline-four
Bore X Stroke:
74.0 mm x 58.0 mm
Compression Ratio:
11.0:1
Valve Train:
DOHC, 16 valves (4 per cylinder)
Ignition System:
Digital CDI
Horsepower Hp At Rpm:
Approx. 140-145 HP @ 10,000 RPM (specifications vary slightly by region and year)
Torque Nm At Rpm:
Approx. 10.5 kgf-m (103 Nm) @ 7,500 RPM
Power Delivery Characteristics:
Strong mid-range torque and linear power delivery, characteristic of a well-tuned inline-four designed for versatility.
Fuel Delivery:
Carburetor (four Mikuni CV diam. 37mm)
Fuel Tank Capacity:
21 Liters
Fuel Type:
Unleaded gasoline, minimum 95 octane
Engine Oil And Filter Change:
Every 6,000 km or 6 months, whichever comes first.
Air Filter Cleaning Or Replacement:
Inspect every 6,000 km, clean or replace as needed. More frequent service in dusty conditions.
Spark Plug Replacement:
Every 12,000 km.
Clutch Adjustment:
Inspect and adjust free play every 6,000 km.
Brake Fluid Change:
Every 12,000 km or 12 months.
Coolant Change:
Every 24,000 km or 24 months.
Valve Clearance Check:
Every 24,000 km.
Engine Oil Type:
Yamalube 4 (or equivalent) SAE 10W-40 API SE, SF, SG, SH, SJ or higher viscosity grade conforming to JASO MA.
Engine Oil Capacity:
3.4 L (with oil filter replacement); 3.0 L (without oil filter replacement)
Coolant Type:
Permanent type antifreeze solution with demineralized water (50:50 ratio recommended).
Fork Oil Type And Level:
Yamaha Fork Oil (or equivalent) SAE 10W, 497 mm (19.57 in) oil level with spring removed and fork compressed.
Gear Oil Type:
Yamaha Motorcycle Gear Oil 80W-90 (or equivalent API GL-4)
Gear Oil Capacity:
0.65 L
Known Issues:
Some owners report occasional charging system issues (rectifier/regulator failure), carburetor synchronization drift over time, and potential wear in the steering head bearings. The manual provides diagnostic procedures for these common concerns.