🏷️ Basic Information

Make:

Yamaha

Model:

TT-R125

Model Variants:

Year:

2006

Product Type:

Service & Repair Manual

Product Format:

PDF

👋 Introduction

Target Audience:

Owners, DIY enthusiasts, and professional motorcycle mechanics working on Yamaha TT-R125 series off-road motorcycles.

Segment:

Lightweight, entry-level to intermediate off-road/trail motorcycles.

Key Competitors Of Vehicle:

Completeness:

Comprehensive coverage encompassing all aspects of maintenance, repair, and diagnostics for the specified models and year.

Visual Aids:

Rich with detailed illustrations, photographs, and exploded view diagrams to aid understanding of complex procedures.

Technical Accuracy:

Official Yamaha documentation, ensuring accuracy in specifications, procedures, and part identification.

📋 Manual Details

Primary Coverage:

Complete Official Service Repair Manual

Production Years Covered:

2006

Specific Sections Highlighted:

Estimated Page Count:

N/A (PDF, digital format)

Manual Classification:

Service Manual / Repair Manual

Language:

English

Digital Format:

PDF

📖 Manual Coverage

Engine Management:

Includes detailed procedures for carburetor adjustment, ignition system testing, and top-end rebuilds.

Fuel System:

Covers carburetor disassembly, cleaning, reassembly, jetting information, and fuel tank/petcock maintenance.

Transmission Drivetrain:

Detailed instructions for clutch operation, transmission gear inspection, shift mechanism, and final drive chain adjustment/maintenance.

Suspension Steering:

Covers front fork disassembly, seal replacement, oil levels, rear shock absorber adjustments, and steering head bearing maintenance.

Brakes:

Includes procedures for front and rear brake pad replacement, caliper service, brake fluid bleeding, and linkage adjustments.

Electrical System:

Covers ignition coil, spark plug, lighting system, battery maintenance, starter motor (on electric start models), and basic wiring diagrams.

Chassis Frame:

Includes information on frame inspection, swingarm pivot service, and general chassis component maintenance.

Wheels Tires:

Covers spoke tension checking and adjustment, tire pressure recommendations, and wheel bearing service.

Routine Maintenance:

Covers oil changes, air filter cleaning/replacement, spark plug checks, chain lubrication, and general inspection points.

Troubleshooting:

Provides diagnostic flowcharts and common problem-solving techniques for various systems.

Component Rebuilds:

Detailed step-by-step guides for engine top-end (piston, rings, cylinder), carburetor, and brake caliper overhauls.

Adjustments:

Covers carburetor idle speed, clutch cable, throttle cable, and suspension preload adjustments.

Part Replacement:

Instructions for replacing worn or damaged components such as brake pads, clutch plates, and cables.

Diagnostic Capability:

Enables in-depth diagnostics for engine performance issues, electrical faults, and mechanical wear.

Rebuild Scope:

Provides comprehensive instructions for complete engine teardown and rebuild, suitable for experienced mechanics.

Specification Accuracy:

Includes precise torque specifications, clearance measurements, and fluid capacities essential for accurate repairs.

📊 Manual Specifications

File Type:

Portable Document Format (PDF)

Searchability:

Text-searchable PDF for quick information retrieval.

Print Readability:

High-resolution scans ensuring clear diagrams, text, and images for printing.

Binding For Digital:

N/A (Digital format)

Paper Recommendation For Print:

Recommended for printing on standard A4 or Letter size paper for easy handling in a workshop environment.

⚙️ Engine Specifications

Engine Type:

4-stroke, SOHC, 2-valve

Engine Displacement:

124cc

Bore X Stroke:

54 mm x 54.5 mm

Cooling System:

Air-cooled

Compression Ratio:

9.5:1 (Typical, check manual for exact)

Ignition System:

CDI (Capacitor Discharge Ignition)

Starter System:

Kick starter (TT-R125, TT-R125LW) / Electric & Kick starter (TT-R125E, TT-R125LWE)

Horsepower:

Approx. 10-11 HP (Estimate, specific dyno data not typically in manual)

Torque:

Approx. 7-8 lb-ft (Estimate, specific dyno data not typically in manual)

Carburetor Type:

Mikuni VM20SS (or similar, check manual for exact model) for TT-R125/LW, VM22SS for TT-R125E/LWE

Fuel Type:

Unleaded gasoline, octane rating 87 or higher.

Fuel Tank Capacity:

Approx. 1.6 US gal (6.0 L)

🔧 Transmission

Transmission Type:

Constant mesh, 5-speed

Clutch Type:

Wet, multiple disc

Gear Ratios:

Specific gear ratios for each gear are detailed within the manual.

Final Drive:

Chain drive

Transmission Oil Type:

Yamalube 4 (or equivalent API SG, SAE 10W-30) motorcycle oil.

Transmission Oil Capacity:

Approx. 1.0 L (1.1 US qt) when filter is changed, 0.9 L (1.0 US qt) without filter change.

📐 Dimensions

Overall Length:

Approx. 75.4 in (1915 mm)

Overall Width:

Approx. 31.7 in (805 mm)

Overall Height:

Approx. 45.7 in (1160 mm)

Seat Height:

Approx. 31.5 in (800 mm) for TT-R125/LW, 33.5 in (850 mm) for TT-R125LWE

Wheelbase:

Approx. 50.2 in (1275 mm)

Ground Clearance:

Approx. 11.8 in (300 mm)

Curb Weight:

Approx. 218 lbs (99 kg) for TT-R125/LW, 234 lbs (106 kg) for TT-R125E/LWE

Dry Weight:

Approx. 198 lbs (90 kg)

Front Tire Size:

70/100-17 40M (TT-R125/LW), 70/100-19 42M (TT-R125LWE)

Rear Tire Size:

90/100-14 49M (TT-R125/LW), 90/100-16 51M (TT-R125LWE)

Wheel Type:

Spoked wheels

🛡️ Safety Features

Crash Test Ratings:

N/A (Off-road motorcycle, not subject to automotive crash testing standards)

Braking System:

Hydraulic disc brakes front and rear for enhanced stopping power.

Lighting:

Halogen headlight, taillight/brake light assembly.

Chassis Design:

Durable steel frame and swingarm designed for off-road abuse.

Ergonomics:

Designed for rider control and comfort during off-road riding.

💡 Technology Features

Infotainment System:

N/A (Basic off-road motorcycle design)

Driver Assistance Features:

N/A (Mechanical and basic electrical systems)

🔧 Maintenance

Engine Oil Change:

Every 1,000 km (600 miles) or 6 months, whichever comes first.

Air Filter Cleaning:

Every 100 km (60 miles) or before each ride in dusty conditions. Replace every 12 months.

Spark Plug Check:

Every 1,000 km (600 miles).

Clutch Cable Adjustment:

Every 1,000 km (600 miles).

Throttle Cable Adjustment:

Every 1,000 km (600 miles).

Chain Lubrication Adjustment:

Every 200 km (120 miles) or after washing the motorcycle.

Engine Oil:

Yamalube 4 (or equivalent API SG, SAE 10W-30) motorcycle oil.

Brake Fluid:

DOT 3 or DOT 4 hydraulic brake fluid.

Fork Oil:

Specific fork oil grade and quantity detailed in manual (e.g., SAE 10W).

Carburetor Fouling:

Common issue with off-road bikes; requires regular cleaning and proper jetting for optimal performance. Manual details cleaning procedures.

Clutch Wear:

Wear on clutch plates can occur with aggressive riding. Manual provides inspection and replacement steps.

Chain And Sprocket Wear:

Regular maintenance is crucial to prolong the life of the drive chain and sprockets. Manual details inspection and replacement.

Suspension Seals:

Fork seal leaks can occur; manual provides instructions for seal replacement.

📚 Vehicle History

Yamaha Motorsport Legacy:

Yamaha has a long and storied history in off-road motorcycle racing and production, known for innovation and performance.

Tt-R Lineage:

The TT-R line represents Yamaha's commitment to accessible and capable trail bikes, evolving from earlier TTR models.

Manufacturing Location:

Typically manufactured in Japan and/or other Yamaha global production facilities.

Original Intent:

Designed as a durable, user-friendly, and capable trail bike for recreational off-road riding.

🏆 Awards & Recognition

Industry Awards:

While specific awards for this model variant from 2006 are not readily cataloged, the TT-R series is generally well-regarded for its reliability and suitability as a starter trail bike.