🏷️ Basic Information

Make:

Yamaha

Model:

TT-R125

Model Variant:

TT-R125E, TT-R125L

Model Year Range:

2007, 2008, 2009

Vehicle Type:

Off-road Motorcycle (Dirt Bike)

Intended Use:

Trail Riding, Recreational Off-roading

Chassis Code General:

Not explicitly specified for this model year range, but common Yamaha codes apply.

👋 Introduction

Target Audience:

Owner-operators, home mechanics, independent repair shops specializing in small-displacement off-road motorcycles.

Value Proposition:

Provides comprehensive, professional repair information, saving owners significant costs compared to dealership service and enabling self-sufficiency in maintenance and repairs.

Competitor Manuals:

Owner's manuals (basic info), Haynes/Clymer (often less detailed for specific models), official Yamaha workshop manuals (typically more expensive and harder to acquire).

Primary Benefit:

Enables DIY repairs and maintenance for the Yamaha TT-R125 across multiple model years, covering all major systems.

Diagram Quality:

High-quality, detailed diagrams are crucial for understanding assembly and disassembly procedures.

Troubleshooting Support:

Structured troubleshooting guides are invaluable for diagnosing and resolving issues efficiently.

📋 Manual Details

Manual Type:

Service Repair Manual

Language:

English

Format:

Instant Download (Digital - typically PDF)

Coverage Scope:

Comprehensive Workshop Repair Procedures

Content Format:

Detailed Instructions, Step-by-Step Diagrams, Electrical Diagrams

📖 Manual Coverage

Engine Mechanical:

Top-end (cylinder, piston, valves), Bottom-end (crankshaft, connecting rod, bearings), Camshaft, Timing, Cooling System (air-cooled).

Fuel System:

Carburetor (assembly, adjustment, cleaning, troubleshooting), Fuel Tank, Fuel Lines.

Ignition System:

CDI (Capacitor Discharge Ignition), Spark Plug, Coil, Pickup Coil, Flywheel Magneto.

Transmission Drivetrain:

Clutch (operation, adjustment, replacement), Gearbox (internal components, shifting mechanism), Drive Chain.

Electrical System:

Wiring Harness, Battery, Lighting (headlight, taillight), Ignition Switch, Neutral Indicator Light, Electric Start System (if applicable to specific variant), Lighting Coils.

Chassis Frame:

Frame Inspection, Headstock Bearing, Swingarm, Rear Shock Absorber, Linkage (if applicable).

Suspension Front:

Front Forks (disassembly, inspection, oil change, seal replacement, spring replacement).

Brakes:

Front and Rear Brake Systems (lever, caliper, master cylinder, fluid replacement, pad replacement, bleeding, disc inspection).

Wheels Tires:

Wheel Bearing Inspection, Tire Pressure, Rim Inspection, Spoke Tension (if applicable).

Exhaust System:

Muffler, Header Pipe Inspection, Gasket Replacement.

Routine Maintenance:

Oil Changes, Filter Cleaning/Replacement, Chain Adjustment/Lubrication, Air Filter Service, Spark Plug Replacement, Brake System Checks.

Engine Repair:

Top-end rebuild (piston, rings, cylinder), Valve Adjustment, Carburetor Rebuild, Crankcase Assembly/Disassembly.

Electrical Diagnostics:

Troubleshooting wiring issues, component testing (coils, switches), using electrical diagrams.

Suspension Service:

Front fork seal replacement, oil level adjustment, rear shock service.

Brake Service:

Brake pad replacement, caliper service, brake fluid flush and bleed.

Drivetrain Service:

Clutch adjustment and replacement, drive chain maintenance.

Troubleshooting:

Step-by-step guides for diagnosing common problems and their solutions.

Depth Level:

Comprehensive (from basic maintenance to full engine and transmission rebuilds).

Diagnostic Capabilities:

Detailed troubleshooting flowcharts and component testing procedures.

Special Tools:

Lists and descriptions of special tools required for specific procedures.

📊 Manual Specifications

Digital Format:

PDF

Searchability:

Likely text-searchable PDF (depending on source quality).

Digital Quality:

High resolution for clear diagrams and text.

Digital Binding:

N/A (Digital Download)

Digital Paper:

N/A (Digital Download)

⚙️ Engine Specifications

Engine Type:

Four-stroke, SOHC, Air-cooled

Displacement:

124cc

Bore X Stroke:

54.0 mm x 54.5 mm

Compression Ratio:

10.2:1

Horsepower:

Approx. 10-12 HP (est. for model year range)

Torque:

Approx. 7-8 lb-ft (est. for model year range)

Carburetor Type:

Mikuni VM20SS (typical, may vary slightly by sub-model)

Fuel Type:

Unleaded Gasoline (minimum 87 octane)

Oil Type:

Yamalube 4 (or equivalent SAE 10W-30 API SE, SF, SG, SH, SJ, SL classification motorcycle oil)

Oil Capacity:

0.90 L (0.95 US qt) without filter change, 1.00 L (1.05 US qt) with filter change.

🔧 Transmission

Transmission Type:

5-speed constant mesh

Clutch Type:

Wet, multiple-disc

Final Drive:

Chain Drive

📐 Dimensions

Length:

Approx. 1850 mm (72.8 in)

Width:

Approx. 760 mm (29.9 in)

Height:

Approx. 1080 mm (42.5 in)

Seat Height:

Approx. 805 mm (31.7 in)

Wheelbase:

Approx. 1275 mm (50.2 in)

Dry Weight:

Approx. 95 kg (209 lbs)

Wet Weight:

Approx. 100 kg (220 lbs) (est.)

Fuel Tank Capacity:

6.0 L (1.6 US gal) (including reserve)

Front Tire Size:

70/100-19M/C 42P

Rear Tire Size:

90/100-16M/C 51P

Front Wheel Type:

Spoked Rim

Rear Wheel Type:

Spoked Rim

🛡️ Safety Features

Safety Ratings:

Motorcycles are not typically rated by organizations like NHTSA or Euro NCAP. Safety is primarily determined by rider skill and adherence to safe riding practices.

Braking System:

Front and Rear Drum Brakes (TT-R125E) or Front Disc/Rear Drum (TT-R125L) depending on specific sub-model and market. TT-R125L often features front disc brake.

Lighting:

Headlight, Taillight/Brake Light, possibly indicators depending on street legality of specific models/markets.

Frame Construction:

Steel tube frame designed for off-road durability.

Suspension Travel:

Designed to absorb impacts and maintain tire contact with terrain for stability.

💡 Technology Features

Infotainment Features:

None (This is a basic off-road motorcycle designed for utility, not advanced electronics).

Assistance Systems:

None.

Connectivity Features:

None.

Dashboard:

Basic analog speedometer (on some models/markets), neutral indicator light, and odometer.

🔧 Maintenance

Engine Oil Change:

Every 1,000 km (600 miles) or 6 months, whichever comes first. For severe use, more frequent changes are recommended.

Air Filter Cleaning:

Every 1,000 km (600 miles) or 6 months. Clean more frequently in dusty conditions.

Spark Plug Inspection:

Every 1,000 km (600 miles) or 6 months. Replace as needed based on inspection.

Drive Chain Adjustment:

Every 500 km (300 miles) or monthly. Check for slack and lubricate.

Valve Clearance Check:

Every 4,000 km (2,500 miles) or 2 years.

Engine Oil Spec:

SAE 10W-30 API SE, SF, SG, SH, SJ, SL classification motorcycle oil (e.g., Yamalube 4).

Brake Fluid Spec:

DOT 3 or DOT 4 hydraulic brake fluid (if equipped with disc brake).

Fork Oil Spec:

Yamaha Suspension Oil (or equivalent SAE 10W fork oil). Capacity: 397 ml (13.4 US oz) per fork leg.

Common Wear Items:

Clutch plates, brake pads, tires, spark plugs, air filters, fork seals.

Carburetor Performance:

Carburetor can require periodic cleaning and adjustment due to fuel quality or debris. Jetting may need adjustment for aftermarket exhaust or air filter modifications.

Electrical Connections:

Corrosion or looseness in electrical connectors can lead to intermittent issues, especially in off-road environments.

Suspension Leaks:

Fork seal leaks can occur with heavy use or impact, requiring seal replacement.

📚 Vehicle History

Manufacturer:

Yamaha Motor Company, a Japanese multinational corporation known for its broad range of products, including motorcycles, musical instruments, and power products.

Tt R Lineage:

The TT-R line represents Yamaha's entry-level to mid-level off-road recreational bikes, known for their reliability and ease of use. The TT-R125 has been a staple in this category for many years, evolving from earlier models with incremental updates.

Key Updates Pre 2007:

Previous generations saw variations in suspension (e.g., drum vs. disc brakes), electric start availability, and styling. The 2007-2009 models represent a refinement of the established TT-R125 platform.

Manufacturing Location:

Primarily manufactured in Japan and/or other Yamaha global facilities. Specific assembly location can vary.

Market Introduction:

The TT-R125 was introduced in the early 2000s, with the 2007-2009 models being part of its ongoing production run.

🏆 Awards & Recognition

Industry Acclaim:

The TT-R125 series has consistently been praised for its reliability, ease of maintenance, and suitability for beginner to intermediate riders in the recreational off-road segment. It's a popular choice for youth and adult trail riding.

Consumer Satisfaction:

Generally high consumer satisfaction due to its robust build and consistent performance for its intended purpose.

Emissions:

Meets applicable emissions standards for off-road vehicles in its target markets for the respective model years.