Target Audience:
Off-road riders, racers, and owners focused on DIY maintenance and repair.
Value Proposition:
Provides essential technical data and procedural guidance for maintaining and repairing the 2006 TT-R125 model variants.
Manual Focus:
Practical, hands-on repair and maintenance for off-road conditions.
Engine:
Complete engine overhaul, disassembly, assembly, tuning, lubrication, cooling system.
Transmission:
Clutch operation, gearbox disassembly and reassembly, shifting mechanism.
Fuel System:
Carburetor identification, adjustment, cleaning, fuel tank, fuel lines.
Electrical System:
Ignition system, lighting, charging system, wiring diagrams, component testing.
Suspension:
Front fork service (oil changes, seal replacement), rear shock absorber maintenance, linkage service.
Brakes:
Front and rear brake system maintenance, pad replacement, caliper service, hydraulic system bleeding.
Chassis Frame:
Frame inspection, steering bearing service, swingarm lubrication and bearing replacement.
Wheels Tires:
Wheel bearing service, spoke tensioning, tire selection and mounting.
Maintenance:
Regular scheduled maintenance tasks, lubrication points, inspections.
Troubleshooting:
Diagnostic procedures for common problems, fault finding charts.
Repair:
Step-by-step repair instructions for all major components and systems.
Assembly Disassembly:
Detailed guides for component removal and installation.
Depth Level:
Comprehensive rebuild and in-depth troubleshooting
Engine Type:
Four-stroke, SOHC, Air-cooled
Bore X Stroke:
54 mm x 54.5 mm
Horsepower:
Approx. 10-11 HP (estimates vary based on tuning and dyno)
Torque:
Approx. 7-8 lb-ft (estimates vary)
Carburetor:
Mikuni VM20SS (TT-R125E, TT-R125L) or VM22SS (TT-R125LE - some variations exist)
Fuel Tank Capacity:
1.6 gal (6 L)
Oil Type:
Yamalube 4 (or equivalent motorcycle-specific SAE 10W-40) API SG or higher
Oil Capacity:
0.95 L (1.0 US qt) without filter change, 1.0 L (1.1 US qt) with filter change
Transmission Type:
Constant mesh, 5-speed
Clutch Type:
Wet, multi-disc
Gear Ratios:
1st: 2.833, 2nd: 1.706, 3rd: 1.235, 4th: 1.000, 5th: 0.857 (refer to manual for precise ratios)
Transmission Oil Type:
Yamalube 4 (or equivalent motorcycle-specific SAE 10W-40)
Transmission Oil Capacity:
0.75 L (0.8 US qt)
Engine Oil Change:
Every 1000 km (600 miles) or 6 months, whichever comes first. Check more frequently under severe use.
Air Filter Cleaning:
Every 20 hours of riding or monthly. Clean more often in dusty conditions.
Spark Plug Check:
Every 1000 km (600 miles) or 6 months.
Chain Lubrication:
Every 300 km (200 miles) or after washing/riding in rain. Adjust tension as needed.
Engine Oil Grade:
SAE 10W-40
Engine Oil API:
API SG or higher
Brake Fluid Type:
DOT 3 or DOT 4 (for disc brake models)
Carburetor Clogging:
Can occur due to stale fuel or dirt ingress; regular cleaning is recommended.
Clutch Wear:
Normal wear item, replacement intervals vary with riding style.
Suspension Seals:
Front fork seals can develop leaks over time, requiring replacement.
Throttle Cable Adjustment:
May require periodic adjustment to maintain proper slack.
Yamaha Legacy:
Yamaha has a long and successful history in off-road motorcycle racing and recreation, known for reliable and performance-oriented machines.
Tt-R Series:
The TT-R line represents Yamaha's commitment to entry-level to mid-level off-road performance, offering durable and user-friendly machines for various skill levels.
Production Years:
The TT-R125 series was in production for many years, with the 2006 model representing a refinement of the original design.
