Market Segment:
Entry-level to intermediate dual-sport/trail motorcycle.
Competitors:
Honda CRF230F, Kawasaki KLR250, Suzuki DR-Z250.
Target User:
Trail riders, recreational off-road enthusiasts, riders seeking a reliable and easy-to-maintain dual-sport machine.
Manual Benefit:
Empowers owners and technicians to perform all maintenance and repair tasks accurately, saving time and money, and ensuring optimal performance.
Engine:
Engine overhaul, top-end and bottom-end components, lubrication system, cooling system (air-cooled), ignition system, starting system.
Transmission:
Clutch, gearbox, shifting mechanism, final drive (chain).
Chassis:
Frame, suspension (front forks, rear shock absorber), steering, wheels, tires, brakes (front disc, rear drum).
Electrical:
Wiring diagrams, lighting, indicators, battery, charging system (alternator), ignition coil, CDI unit.
Fuel System:
Carburetor (Mikuni BS30), fuel tank, petcock, fuel lines.
Maintenance:
Routine checks, oil changes, filter replacements, chain maintenance, brake adjustments, spark plug replacement, air filter cleaning/replacement.
Troubleshooting:
Diagnostic charts for common starting, running, and electrical issues.
Repair:
Detailed step-by-step instructions for component disassembly, inspection, repair, and reassembly.
Specifications:
Torque specifications for all fasteners, clearances, and tolerances.
Depth:
Comprehensive, covering everything from basic maintenance to full engine rebuilds and complex electrical diagnostics. Equivalent to dealership-level repair information.
Engine Type:
Four-stroke, SOHC, air-cooled
Bore X Stroke:
66.5 mm x 64.2 mm
Valve Configuration:
SOHC, 2 valves
Horsepower:
Approximately 16-18 HP (estimated, manufacturer data may vary)
Torque:
Approximately 13-15 lb-ft (estimated, manufacturer data may vary)
Carburetor Model:
Mikuni BS30
Fuel Type:
Unleaded gasoline
Fuel Tank Capacity:
9.0 L (2.4 gal)
Transmission Type:
Constant mesh, 6-speed sequential
Clutch Type:
Wet, multiple disc
Final Drive:
O-ring sealed chain
Transmission Oil Type:
Yamalube 4 (10W-40) or equivalent API SG, SAE 10W-40 viscosity grade motorcycle oil.
Transmission Oil Capacity:
1.8 L (1.9 US qt) for periodic oil change; 2.1 L (2.2 US qt) for total draining and refill.
Engine Oil Change:
Every 3,000 km (1,800 miles) or 6 months, whichever comes first.
Oil Filter Replacement:
Every 3,000 km (1,800 miles) or 6 months, or as needed during oil changes.
Air Filter Cleaning:
Every 1,000 km (600 miles) or 3 months; replace if damaged.
Spark Plug Check:
Every 3,000 km (1,800 miles) or 6 months; replace as needed.
Chain Lubrication Adjustment:
Every 500 km (300 miles) or after riding in wet/dusty conditions.
Valve Clearance Check:
Every 6,000 km (3,600 miles) or 12 months.
Engine Oil Type:
Yamalube 4 (10W-40) or equivalent API SG, SAE 10W-40 viscosity grade motorcycle oil.
Brake Fluid Type:
DOT 3 or DOT 4.
Engine Oil Capacity:
1.8 L (1.9 US qt) for periodic oil change; 2.1 L (2.2 US qt) for total draining and refill.
Common Wear Items:
Clutch plates, fork seals, rear shock bushings, carburetor jets due to fuel quality variations.
Carburetor Cleaning:
Regular cleaning of the Mikuni BS30 carburetor may be required due to the nature of off-road riding and fuel quality.
Brand Focus:
Yamaha is renowned for its innovation and performance in motorcycles, particularly in off-road and dual-sport segments, with a long history of competitive success.
Lineage:
The TT-R line evolved from Yamaha's successful YZ and XT series, offering a more accessible and user-friendly off-road experience.
Production Years:
The TT-R225 was produced from 1999 to 2005, with minor updates over its lifespan.
