2005 Yamaha MT-01(T) Service Manual 5YU1-AE1
Professional service data for MT-01 and MT-01(T) motorcycle including 1670cc engine specs, 0.12–0.17mm intake valve clearance, 210 Nm drive sprocket torque, and 90890–01304 fuel system diagnostics.
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Models Covered & Key Technical Specifications
Yamaha MT–01(T) Series — 2005 Functional Reference Handbook | MT–01 Service Compendium.
- System Displacement Data: 1670.0 cm³ (101.90 cu.in) is configured at the V-type cylinder architecture Benchmarks.
- Core Power Output: For maximum performance, 8.40:1 compression ratio establishes the optimized combustion chamber Sequences.
- Specific Torque Specification: 210 Nm (21.0 m·kgf, 150 ft·lbf) drive sprocket nut represents the fastening load Range.
- Critical Valve Clearance: The intake and exhaust valves require 0.12–0.17 mm and 0.20–0.25 mm cold gaps respectively Baseline.
- Universal Spark Plug Setting: 0.8–0.9 mm NGK DPR7EA-9 spark plug gap maintains the ignition sequence Requirements.
- Calibrated Fluid Capacity: Front fork oil capacity reaches 583.0 cm³ (19.71 US oz) per leg assembly Threshold.
Professional Workshop Service Manual & Technical Specifications
Enhanced Service Manual: Yamaha MT–01(T) Series Motorcycle Professional Service Reference Repair-Index
Subsystem-Focus: Yamaha MT–01(T) Series (5YU1–AE1), 2005 // Architecture-Focus: Complete V-Twin Engine and Transmission Logic // Procedure-Type: Factory Service Standards (440 Pages).
| Service-Nexus | Parameters | Architecture |
|---|---|---|
| Engine Rebuild Systems | Displacement: 1670.0 cm³; Compression: 8.40:1 | Complete disassembly procedures, camshaft alignment sequences |
| Drivetrain Configuration | Primary: 71/48 (1.479); Secondary: 39/17 (2.294) | Clutch assembly, transmission gear documentation |
| Suspension & Steering | Front Fork: 120 mm travel; Rear: 50 mm travel | Damping adjustment positions, spring preload settings |
| Braking Systems | Front Dual Disc; Rear Single Disc (DOT 4 fluid) | Pad wear limits, brake disc deflection parameters |
| Fuel Injection Architecture | MIKUNI AC40 Throttle Body (2x); INP-101 Injectors | Pressure regulator operation, sensor specifications |
Technical chapters are organized around engine and transmission systems, containing procedures for cylinder head work and valve service, addressing fuel injection diagnostics and throttle body synchronization, covering chassis suspension and brake component service, and documenting electrical system troubleshooting and generator operation.
Core Logic-Path
Engine rebuild procedures are documented for both cylinders, with camshaft timing marks, valve clearance specifications, and piston ring configuration. The manual provides detailed crankshaft bearing clearance data and connecting rod assembly sequences. Clutch operation documentation includes friction plate thickness limits and spring preload adjustment methodology. Service intervals are documented for all components, with inspection points and wear limits clearly defined throughout.
Systematic Architecture
Drivetrain specifications are addressed in comprehensive transmission chapters covering shift drum assembly, transmission gear engagement sequences, and shift fork operation. The document includes specifications for both primary and secondary drive gear tooth counts and reduction ratios. Drive chain maintenance is covered with slack adjustment procedures and sprocket wear assessment criteria. Engine oil circulation pathways are illustrated with lubrication point identification and component-specific fluid capacity requirements.
Modular Framework
Reassembly procedures are specified for crankcase assembly with progressive bolt torque sequences and sealant application points. Cylinder head installation documentation includes nut tightening sequences in two-stage progression with specific bolt positions and lengths. Suspension component reassembly is detailed with spring rate specifications and damper rod assembly instructions. Electrical system components are covered with ignition coil resistance values and starter motor armature testing procedures.
Strategic Topology
Component locations are identified for spark plugs (NGK DPR7EA-9 or DENSO X22EPR-U9 with 0.8–0.9 mm gap), fuel injectors (INP-101 units), and sensor assemblies throughout the engine bay and chassis. The document includes wiring diagram references with harness routing specifications and connector identification. Electrical component accessibility is documented for alternator, starter motor, and fuel pump service access points.
Operational Methodology
Service technicians will find comprehensive reference tables documenting torque specifications for the drive sprocket nut assembly, cylinder head fastening sequences, and engine mounting hardware. Valve clearance reference data is included for both intake (0.00–0.04 mm cold) and exhaust (0.00–0.04 mm cold) conditions. Fuel system pressure parameters are documented at 392 kPa (55.7 psi) for system operation verification. The manual documents torque specifications for the crankshaft position sensor installation, engine oil drain plug seating, and transmission component fastening to ensure proper assembly and thermal expansion compensation.
Technical Coverage: Includes 76 documented chapters spanning 435 pages with detailed specifications for V-Twin air-cooled 4-stroke engine (1670 cm³), 5-speed constant mesh transmission, fuel injection system diagnostics, chassis suspension configuration, dual front disc and single rear disc braking, and complete electrical system architecture including starter motor and alternator operation.
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