Market Segment:
Dual-sport motorcycle, entry-level to intermediate trail riding.
Target Audience:
Novice to intermediate riders, trail enthusiasts, and DIY mechanics seeking detailed repair information.
Competitors:
Honda XR250, Kawasaki KLR250, Suzuki DR250S.
Features:
Reliable air-cooled engine, user-friendly handling, suitable for a variety of terrains, durable construction.
Manual Advantage:
Provides the most detailed, comprehensive step-by-step procedures, explanations, and pictorial diagrams available for this model.
Engine:
Comprehensive engine overhaul, including top-end and bottom-end components, lubrication system, cooling system (if applicable), ignition system, and fuel system.
Transmission:
Clutch, gearbox (internal components, shifting mechanisms), and final drive (chain, sprockets).
Chassis:
Frame, suspension (forks, shock absorber), steering system, wheels, and brakes (front and rear).
Electrical:
Wiring diagrams, lighting system, ignition system components, battery, charging system, and starter system.
Bodywork:
Fairings, fenders, seat, fuel tank, and other body panels.
Fuel System:
Carburetor disassembly, cleaning, inspection, adjustment, and troubleshooting. Fuel tank and petcock inspection and maintenance.
Lubrication System:
Oil pump operation, oil filter inspection, oil passages, and oil level checks.
Maintenance:
Routine checks, oil changes, filter replacements, chain lubrication and adjustment, spark plug replacement, brake fluid replacement, valve clearance adjustment.
Troubleshooting:
Systematic diagnosis of common problems, fault finding guides, and diagnostic procedures for engine, electrical, and mechanical issues.
Repair:
Detailed step-by-step instructions for component removal, disassembly, inspection, repair, reassembly, and installation.
Adjustments:
Carburetor tuning, clutch adjustment, throttle cable adjustment, brake lever adjustment, suspension preload adjustment.
Special Tools:
References to required special service tools with associated illustrations for their use in adjustment and repair operations.
Torque Specifications:
Detailed torque values for all critical fasteners during assembly and installation.
Wear Limits:
Specifications for wear limits of various engine and chassis components to ensure proper function and longevity.
Depth:
Comprehensive, covering everything from basic maintenance and adjustments to complete engine and transmission rebuilds, and advanced troubleshooting.
Diagnostic Coverage:
Includes diagnostic information, troubleshooting charts, and specifications for identifying and rectifying issues.
Engine Type:
Air-cooled, 4-stroke, SOHC, 2-valve
Bore X Stroke:
66.0 mm x 66.0 mm (estimated, refer to manual for precise figures)
Horsepower Estimate:
Approx. 15-18 HP (estimated, refer to manual for official figures).
Torque Estimate:
Approx. 12-15 lb-ft (estimated, refer to manual for official figures).
Carburetor Type:
Mikuni VM26SS (typical for this model, confirm in manual)
Fuel Type:
Unleaded gasoline
Ignition System:
CDI (Capacitor Discharge Ignition)
Length:
Approximately 2045 mm (refer to manual for exact figure)
Width:
Approximately 810 mm (refer to manual for exact figure)
Height:
Approximately 1145 mm (refer to manual for exact figure)
Dry Weight:
Approximately 108 kg (refer to manual for exact figure)
Fuel Capacity:
Approximately 10 liters (refer to manual for exact figure)
Curb Weight:
Typically around 115-120 kg with fluids (refer to manual for exact figure).
Oil Change Interval:
Typically every 1,000-2,000 km or 6 months, refer to manual for specific recommendation.
Air Filter Cleaning:
As needed, depending on riding conditions, typically every few hundred kilometers off-road.
Chain Maintenance:
Lubrication and adjustment every 500 km or after washing/wet conditions.
Spark Plug Replacement:
Every 5,000-10,000 km or as needed based on inspection.
Valve Clearance Check:
Every 5,000-10,000 km or annually.
Engine Oil Type:
Yamalube 4T 10W-40 or equivalent API SG or higher, JASO MA certified motorcycle oil.
Engine Oil Capacity:
Approximately 1.6 liters without filter change, 1.8 liters with filter change (refer to manual for exact figures).
Brake Fluid Type:
DOT 3 or DOT 4.
Common Problems:
Carburetor jetting can require adjustment for altitude or temperature changes; clutch wear over extended use; occasional electrical connector corrosion in damp environments.
Maintenance Tips:
Regularly clean and re-oil the air filter, keep the chain properly adjusted and lubricated, and check valve clearances periodically for optimal engine performance.
Brand Legacy:
Yamaha is renowned for its long history in motorcycle manufacturing, particularly in off-road and dual-sport segments, with a reputation for reliability and performance.
Model Lineage:
The TTR series represents Yamaha's line of user-friendly, air-cooled off-road and dual-sport motorcycles, evolving from earlier XT models, focusing on accessibility and durability.
Manufacturing Period:
Produced from 1999 through 2004, succeeding earlier models and paving the way for later iterations.
