Model Variant:
TTR125, TT-R125E (Electric Start), TT-R125L (Kick Start, Longer Travel Suspension)
Manual Product Code:
Likely internal sales code, not specified
Vehicle Platform Code:
Not specified, but TTR series typically share core chassis elements
Vehicle Segment:
Entry-level to intermediate off-road/trail motorcycle.
Target Audience:
Beginner riders, recreational trail riders, youth riders, those looking for an accessible and reliable off-road machine.
Key Competitors:
Honda CRF125F (later models), Kawasaki KLX125/KLX140, Suzuki DR-Z125.
Manual Value Proposition:
Empowers owners to perform maintenance and repairs, saving significant costs compared to dealership service. 'Makes every repair job easy to do'.
Vehicle Strengths:
Reliability, user-friendliness, manageable power delivery, durable construction, relatively simple mechanics for DIY work.
Covered Years:
2007, 2008, 2009
Covered Models:
Yamaha TTR125, Yamaha TT-R125E, Yamaha TT-R125L
Estimated Page Count:
Extensive, likely exceeding 300 pages based on 'complete workshop repair manual' claim
Manual Type:
Workshop Service and Repair Manual
Language:
English (Assumed, standard for international service manuals)
Digital Format:
Downloadable (PC, MAC, Tablets, Smartphones)
Engine:
Complete engine disassembly, inspection, overhaul, tuning, troubleshooting, lubrication system, cooling system (air-cooled), valve clearance adjustment, timing chain inspection.
Transmission:
Gearbox disassembly, inspection, reassembly, shift drum and linkage adjustment, clutch operation and maintenance.
Fuel System:
Carburetor service (Mikuni VM series typically), fuel tank maintenance, fuel lines, fuel filter replacement.
Electrical System:
Ignition system (CDI), charging system (AC generator), lighting (headlight, taillight, brake light), battery maintenance, wiring diagrams, component testing.
Chassis:
Frame inspection, suspension (front forks, rear shock), steering system, wheel bearings, final drive (chain and sprockets).
Braking System:
Front and rear brake systems (drum or disc depending on model variant), brake fluid replacement, caliper/drum inspection and service.
Bodywork:
Body panel removal and installation, seat, fenders, fuel tank cover, handle grips.
Maintenance:
Regular scheduled maintenance, oil changes, air filter cleaning/replacement, spark plug replacement, chain lubrication and adjustment, tire pressure checks.
Troubleshooting:
Diagnostic flowcharts for common problems, identification of symptoms and potential causes.
Repair Procedures:
Step-by-step instructions for all major component repairs and overhauls, torque specifications for all fasteners.
Disassembly Reassembly:
Detailed guides for breaking down and rebuilding all mechanical and electrical systems.
Depth Of Information:
Comprehensive Professional Quality: Covers everything from basic maintenance to complete engine and transmission rebuilds, including diagnostic procedures and specifications.
Engine Type:
Four-stroke, SOHC, 2-valve, Air-cooled
Bore X Stroke:
54 mm x 54.5 mm (typical for this engine)
Compression Ratio:
9.5:1 (typical)
Horsepower Estimate:
Approximately 9-10 HP at 7,500 RPM (est. for this displacement and configuration)
Torque Estimate:
Approximately 7-8 lb-ft at 6,000 RPM (est.)
Carburetor Model:
Mikuni VM20SS (common for TTR125 variants)
Fuel Capacity:
2.0 L (0.53 US gal)
Oil Type:
Yamalube 4 (or equivalent SAE 10W-30 API SG or higher, JASO MA)
Oil Capacity:
Approx. 0.9 L (0.95 US qt) for oil change, 1.0 L (1.06 US qt) for filter change
Ignition Type:
CDI (Capacitor Discharge Ignition)
Spark Plug Type:
NGK CR7E (or equivalent)
Transmission Type:
Constant mesh 5-speed
Clutch Type:
Wet, multiple-disc
Final Drive:
Chain drive, 428 O-ring seal chain
Gear Ratios:
Typical ratios: 1st: 2.833, 2nd: 1.875, 3rd: 1.380, 4th: 1.130, 5th: 0.913 (approximate, varies slightly by model year/variant)
Transmission Oil Type:
Yamalube Gear Oil (or equivalent SAE 80 API GL-4)
Transmission Oil Capacity:
Approx. 0.47 L (0.50 US qt)
Overall Length:
Approx. 1845 mm (72.6 in) for TTR125L; slightly less for TTR125
Overall Width:
Approx. 765 mm (30.1 in)
Overall Height:
Approx. 1090 mm (42.9 in) for TTR125L; slightly less for TTR125
Seat Height:
Approx. 805 mm (31.7 in) for TTR125; 830 mm (32.7 in) for TTR125L
Wheelbase:
Approx. 1275 mm (50.2 in) for TTR125L; 1270 mm (50.0 in) for TTR125
Ground Clearance:
Approx. 295 mm (11.6 in) for TTR125L; 265 mm (10.4 in) for TTR125
Wet Weight:
Approx. 97 kg (214 lbs) for TTR125; 103 kg (227 lbs) for TTR125E (est.)
Dry Weight:
Approx. 91 kg (201 lbs) for TTR125 (est.)
Front Tire Size:
2.50-17 4PR
Rear Tire Size:
3.00-14 4PR
Wheel Type:
Spoked, steel rims
Engine Oil Change Interval:
Every 1,000 km (600 miles) or 6 months, whichever comes first.
Air Filter Cleaning Interval:
Every 500 km (300 miles), or more frequently in dusty conditions.
Spark Plug Replacement Interval:
Every 3,000 km (1,800 miles) or as needed based on inspection.
Valve Clearance Check Interval:
Every 3,000 km (1,800 miles).
Chain Lubrication Adjustment:
Every 500 km (300 miles) or after riding in wet conditions.
Engine Oil Specification:
SAE 10W-30 API SG or higher, JASO MA certified.
Transmission Oil Specification:
SAE 80 API GL-4 gear oil.
Brake Fluid Specification:
DOT 3 or DOT 4 hydraulic brake fluid.
Common Wear Items:
Clutch plates, brake pads/shoes (depending on variant), wheel bearings, steering head bearings, fork seals, chain and sprockets.
Carburetor Tuning:
Can require periodic adjustment due to wear or altitude/temperature changes. Carburetor jets can become clogged.
Suspension Performance:
While adequate for its class, the suspension can feel basic for aggressive riding and may benefit from aftermarket upgrades.
Manufacturer:
Yamaha Motor Company, Japan
Brand Specialty:
Renowned for high-performance motorcycles, musical instruments, and marine products. Strong history in off-road racing and innovation.
Introduction Year:
The TTR125 series was introduced in the early 2000s (around 2000-2001), replacing older models and consolidating Yamaha's offering in the small-displacement off-road segment.
Key Updates Pre 2007:
Introduction of electric start (TTR125E) and longer-travel suspension variants (TTR125L) distinguished the line-up. Carburetor and suspension tuning evolved.
Production Period:
The TTR125 model range has been in continuous production since its introduction, with updates to styling, minor componentry, and emissions compliance over the years. The 2007-2009 period represents a specific iteration within this long-running model line.
Industry Acclaim:
Consistently praised in reviews for its user-friendliness, reliability, and suitability for novice riders, making it a popular choice for trail riding and learning.
Owner Satisfaction:
Generally high owner satisfaction due to its durability and low running costs.
Emissions Compliance:
Designed to meet emissions standards relevant to its production years and target markets.
