🏷️ Basic Information

Make:

Yamaha

Model:

TTR125 / TT-R125

Year:

2000

Product Code:

2000 Yamaha TTR125 TT-R125 Motorcycle Complete Workshop Service Repair Manual

👋 Introduction

Segment:

Entry-level recreational trail motorcycle, popular for youth riders and casual off-road enthusiasts.

Competitors:

Competes with other small-displacement off-road motorcycles from manufacturers like Honda (CRF100F/CRF150F), Kawasaki (KLX125/KLX140), and Suzuki (DR-Z125).

Features:

Lightweight chassis, user-friendly power delivery, reliable four-stroke engine, capable suspension for trail riding, electric start (on some variants).

Purpose:

Provides comprehensive technical information essential for maintaining, repairing, and troubleshooting the Yamaha TTR125, ensuring optimal performance and longevity.

📋 Manual Details

Systems Covered:

Engine, Fuel System, Electrical System, Transmission, Chassis, Suspension, Brakes, Steering, Bodywork, Troubleshooting, Maintenance, Specifications

Total Pages:

Refer to manual content

Type:

Complete Workshop Service Repair Manual

Language:

English

Format:

Digital Download (typically PDF)

📖 Manual Coverage

Engine:

Detailed coverage of the 124cc air-cooled, four-stroke engine, including top-end and bottom-end components, valve timing, carburetor tuning, and lubrication system.

Fuel System:

Carburetor overhaul, fuel tank and petcock maintenance, fuel line inspection.

Electrical System:

Ignition system (CDI, spark plug), lighting system (headlight, taillight, indicators), battery maintenance, wiring diagrams, charging system.

Transmission:

Clutch operation, gear shifting mechanism, transmission oil change and inspection, gearbox disassembly and reassembly.

Chassis:

Frame inspection, footpegs, handlebars, seat, fenders, and plastic body panels.

Suspension:

Front fork (oil level, seal replacement, damper rod inspection), rear shock absorber (spring preload adjustment, damping), linkage maintenance.

Brakes:

Front and rear drum brake systems, brake shoe inspection and replacement, brake cable adjustment, brake linkage maintenance.

Steering:

Steering head bearing inspection and adjustment, handlebar and control lever adjustments.

Maintenance:

Scheduled maintenance tasks, oil changes, filter replacements, chain adjustment, lubrication points, spark plug checks, air filter cleaning/replacement.

Troubleshooting:

Systematic diagnostic procedures for common operational problems, including engine starting issues, poor performance, electrical faults, and braking problems.

Repair:

Step-by-step repair instructions for all major components, including engine rebuild, carburetor overhaul, brake system repair, suspension overhaul, and electrical component replacement.

Disassembly Reassembly:

Detailed instructions for dismantling and reassembling various motorcycle systems and components, with torque specifications and alignment guides.

Depth:

Comprehensive coverage ranging from basic user maintenance to advanced engine and transmission rebuilds, suitable for both DIY enthusiasts and professional mechanics.

📊 Manual Specifications

File Type:

PDF (Portable Document Format)

Searchability:

Likely includes searchable text for quick information retrieval.

Quality:

High-resolution scans ensuring clarity of diagrams and text.

Binding:

N/A (Digital Download)

Paper:

N/A (Digital Download)

⚙️ Engine Specifications

Engine Type:

Air-cooled, four-stroke, SOHC, single-cylinder

Displacement:

124cc

Bore X Stroke:

54.0 mm x 54.5 mm

Compression Ratio:

9.5:1 (typical, may vary slightly)

Horsepower:

Approx. 10-12 HP (estimate, varies with tuning and specific model variant)

Torque:

Approx. 7-8 lb-ft (estimate, varies with tuning and specific model variant)

Carburetor:

Mikuni VM17 (typical, specific model may vary)

Fuel Type:

Unleaded gasoline

Oil Type:

Yamalube 4 (or equivalent API SE, SF, SG, SH, SJ, or higher, SAE 10W-40 or 20W-40)

Ignition System:

CDI (Capacitor Discharge Ignition)

Spark Plug Type:

NGK CR6HSA (or equivalent)

Valve Lash Intake:

0.08-0.12 mm (0.003-0.005 in)

Valve Lash Exhaust:

0.12-0.16 mm (0.005-0.006 in)

🔧 Transmission

Transmission Type:

5-speed constant mesh

Clutch Type:

Wet, multiple disc

Final Drive:

Chain drive

Transmission Oil Type:

Yamalube 4 (or equivalent API SE, SF, SG, SH, SJ, or higher, SAE 10W-40 or 20W-40)

Transmission Oil Capacity:

0.80 L (0.85 US qt)

📐 Dimensions

Overall Length:

1770 mm (69.7 in)

Overall Width:

775 mm (30.5 in)

Overall Height:

1055 mm (41.5 in)

Seat Height:

775 mm (30.5 in)

Wheelbase:

1270 mm (50.0 in)

Dry Weight:

82 kg (181 lb)

Wet Weight:

86 kg (190 lb) (approximate with fluids)

Fuel Tank Capacity:

5.0 L (1.3 US gal)

Front Tire:

2.50-19 4PR

Rear Tire:

3.00-17 4PR

Front Brake Type:

Drum

Rear Brake Type:

Drum

Front Suspension Travel:

170 mm (6.7 in)

Rear Suspension Travel:

150 mm (5.9 in)

🛡️ Safety Features

Safety Standards:

Designed for off-road recreational use; not street legal in most configurations. Conforms to applicable safety standards for its intended use.

Braking System:

Responsive drum brakes front and rear for controlled stopping power.

Throttle Control:

Smooth and predictable throttle response for rider control.

Frame Construction:

Durable steel frame designed for off-road stresses.

Lighting:

Includes headlight, taillight, and sometimes brake light for visibility in varying conditions.

💡 Technology Features

Features:

Basic functionality; no advanced infotainment systems. Focus is on mechanical and electrical operation.

Features:

No electronic driver assistance features. Relies on rider skill and the mechanical design of the motorcycle.

Features:

No electronic connectivity features.

🔧 Maintenance

Engine Oil Change:

Every 3,000 km (1,800 mi) or 6 months, whichever comes first.

Air Filter Cleaning:

Every 1,000 km (600 mi) or 6 months; replace if damaged.

Spark Plug Inspection:

Every 2,000 km (1,200 mi) or 12 months.

Chain Lubrication:

Every 500 km (300 mi) or after washing/riding in wet conditions.

Chain Tension Check:

Every 1,000 km (600 mi).

Valve Clearance Check:

Every 10,000 km (6,000 mi) or 24 months.

Engine Oil Viscosity:

SAE 10W-40 or SAE 20W-40 (preferred Yamalube 4)

Brake Fluid:

DOT 3 or DOT 4 (if applicable, typically not on drum brakes, but check manual for any hydraulic elements)

Fork Oil Type:

Yamaha Genuine Fork Oil (or SAE 10W fork oil)

Fork Oil Level:

Refer to specific chapter for accurate measurement

Common Wear Items:

Brake shoes, chain and sprockets, tires, and air filter are common wear items requiring regular inspection and replacement.

Carburetor Tuning:

Carburetors can sometimes require adjustment due to fuel variations or wear, impacting idle and throttle response.

Suspension Seals:

Fork seals can degrade over time, leading to oil leaks.

📚 Vehicle History

Heritage:

Yamaha Motor Corporation is a Japanese manufacturer with a long-standing reputation for producing high-quality motorcycles, ATVs, and other powersports vehicles, known for innovation and performance.

Lineage:

The TTR series represents Yamaha's commitment to accessible and fun off-road riding. The TTR125, introduced in the late 1990s, became a staple for entry-level and youth riders, offering a user-friendly four-stroke alternative to 125cc two-strokes.

Variants:

The TTR125 was offered in different configurations over its production run, including kick-start only and electric-start versions, and often with different suspension setups or wheel sizes for specific riding styles (e.g., larger wheels for taller riders).

Production Period:

The TTR125 model was in production for many years, with the 2000 model year being an early iteration of this popular platform.

🏆 Awards & Recognition

Industry Recognition:

While specific awards for the 2000 TTR125 may not be widely publicized, the TTR line has consistently been recognized for its reliability, ease of use, and suitability for its target market segment, making it a popular choice among young riders and families entering off-road recreation.