Target Audience:
Yamaha TT-R90/E owners, DIY enthusiasts, junior mechanics, and service technicians.
Value Proposition:
Provides the same detailed information as an official Yamaha dealership manual at a fraction of the cost, enabling owner independence and cost savings on maintenance and repairs.
Authenticity:
Replicates dealership-level information, ensuring accuracy for all maintenance and repair tasks.
Comprehensiveness:
Covers both routine owner maintenance and in-depth mechanical repair procedures.
Technical Focus:
Comprehensive Service and Repair
Estimated Page Count:
Approx. 300-400 pages (typical for this type of comprehensive manual)
Manual Type:
Combined Owner's & Motorcycle Service Repair Manual
Format:
Digital (likely PDF) - stated to be dealership quality
Engine System:
Complete engine overhaul, component identification, troubleshooting, performance tuning.
Fuel System:
Carburetor disassembly, cleaning, adjustment, fuel tank, fuel lines, petcock.
Ignition System:
CDI unit, ignition coil, spark plug, timing checks.
Transmission System:
Gearbox operation, clutch assembly, shifting mechanisms, lubrication.
Suspension System:
Front fork service, rear shock absorber maintenance, spring rates, damping adjustments.
Braking System:
Front and rear brake operation, hydraulic system, caliper servicing, pad replacement, bleeding.
Electrical System:
Wiring diagrams, lighting, battery maintenance, starter motor, charging system.
Chassis And Frame:
Frame integrity, steering head bearings, swingarm, wheel bearings.
Bodywork And Plastics:
Fairing removal, seat, fenders, graphics.
Scheduled Maintenance:
Oil changes, filter replacements, chain adjustments, general inspections.
Troubleshooting:
Diagnosis of common starting, running, and performance issues.
Repair Procedures:
Step-by-step instructions for component removal, repair, and reassembly.
Technical Specifications Data:
Torque values, clearances, fluid capacities, electrical resistance.
Diagnostic Techniques:
Methods for identifying the root cause of malfunctions.
Depth Of Coverage:
Comprehensive: Covers everything from basic owner maintenance to complete engine rebuilds and electrical system diagnostics.
Engine Type:
4-stroke, SOHC, Air-cooled
Bore X Stroke:
47 mm x 51.1 mm
Horsepower:
Approx. 7.3 HP @ 8000 RPM (Specifications may vary slightly by market/tuning)
Torque:
Approx. 7.0 Nm @ 6000 RPM (Specifications may vary slightly by market/tuning)
Carburetor:
Mikuni VM17SS (or similar)
Fuel Type:
Unleaded Gasoline (87 octane or higher recommended)
Safety Ratings:
N/A (Motorcycles are not typically assigned formal safety ratings like cars; focus is on rider safety through design and maintenance.)
Active Safety Features:
Effective braking system, responsive handling, appropriate tire grip for off-road conditions.
Passive Safety Features:
Robust frame construction, protective body panels.
Engine Oil Change:
Every 1,000 km (600 miles) or 6 months, whichever comes first. Inspect more frequently in hard riding conditions.
Spark Plug Inspection:
Every 1,000 km (600 miles)
Air Filter Cleaning:
Every 500 km (300 miles) or more frequently in dusty conditions.
Chain Lubrication And Adjustment:
Every 500 km (300 miles)
Engine Oil Type:
Yamalube 4 (SAE 10W-30) or equivalent API SE, SF, SG, SH, SJ, or SL type oil.
Engine Oil Capacity:
0.90 L (0.95 US qt)
Common Wear Items:
Spark plug, air filter, chain and sprockets, brake pads, tires, throttle cable, clutch shoes (due to automatic transmission wear).
Carburetor Tuning:
Can be sensitive to altitude and temperature changes, requiring occasional adjustment. Clogged jets are common if fuel is left in the tank for extended periods without stabilizer.
Electrical Connections:
Corrosion on electrical connectors can lead to intermittent issues, especially in wet or muddy environments.
Manufacturer Heritage:
Yamaha Motor Company, Ltd. is a Japanese manufacturer known for its broad range of motorcycles, musical instruments, and other powered products. Yamaha has a long-standing reputation for innovation and quality in the motorcycle industry.
Tt R Series Context:
The TT-R series represents Yamaha's line of youth-oriented off-road motorcycles, designed for trail riding and recreational use. The TT-R90/E was a popular entry-level model in this series, known for its ease of use and reliability.
Production Period:
The TT-R90/E was produced from approximately 2000 to 2007. The 2004 model is a mid-cycle iteration.
