Category:
Entry-level to intermediate off-road/trail motorcycle.
Target Audience:
Beginner riders, recreational trail riders, youth riders, and those looking for an affordable and reliable off-road experience.
Competitors:
Honda CRF100F/CRF150F, Kawasaki KLX110/KLX140, Suzuki DR-Z125.
Ease Of Use:
Known for user-friendly operation and forgiving power delivery.
Durability:
Yamaha's reputation for robust and reliable engines.
Versatility:
Suitable for trail riding, recreational use, and as a learning platform.
Primary Coverage:
All 2009-2010 Yamaha TT-R125 models
Secondary Coverage:
TT-R125E (Electric Start), TT-R125L (Kick Start)
Estimated Pages:
Extensive, detailed (specific page count not provided, but described as 'huge amount of detailed repair information')
Type:
Workshop Service Repair Manual
Engine:
Complete overhaul, troubleshooting, diagnostics, tuning, carburetor, ignition, lubrication, cooling.
Transmission:
Clutch, gearbox, shifting mechanism, lubrication, troubleshooting, disassembly/assembly.
Chassis:
Frame, swingarm, steering system, suspension (front and rear), wheels, hubs, spokes, bearings.
Electrical System:
Ignition system, lighting, battery, starter motor (for TT-R125E), wiring diagrams, troubleshooting.
Fuel System:
Carburetor (Mikuni VM20SS or similar), fuel tank, fuel lines, troubleshooting, cleaning, adjustments.
Braking System:
Front and rear brake systems (disc and drum), hydraulic components, pad replacement, fluid changes, troubleshooting.
Exhaust System:
Muffler, header pipe, heat shields, gaskets, inspection, replacement.
Maintenance:
Regular servicing, oil changes, filter replacements, chain adjustments, brake adjustments, spark plug replacement.
Troubleshooting:
Systematic diagnostics for common and uncommon issues, problem identification and resolution.
Repair:
Component-level repairs, part replacement, adjustments for all covered systems.
Disassembly Assembly:
Detailed step-by-step instructions for taking apart and putting back together all major components and systems.
Technical Specifications:
Torque specifications, clearances, fluid capacities, ignition timing, valve clearances, emissions data.
Illustrations Diagrams:
Exploded views, wiring diagrams, component illustrations for easy identification and guidance.
Depth:
Comprehensive, from basic maintenance to complete engine and transmission rebuilds. Suitable for DIY enthusiasts and professional mechanics.
Compatibility:
PC & Mac compatible (Windows 95, 98, 2000, NT, XP, Vista, 7, 8, etc.)
Searchability:
Likely searchable text within PDF format, enhancing ease of use.
Quality:
High quality, designed for clarity of text and diagrams.
Type:
Digital Download (PDF) - Not applicable for physical binding.
Type:
Digital Download (PDF) - Not applicable for physical paper type.
Engine Type:
Four-stroke, SOHC, air-cooled
Bore X Stroke:
54 mm x 54.5 mm (typical for this generation)
Compression Ratio:
9.5:1 (typical)
Valve Configuration:
SOHC, 2 valves
Horsepower:
Approximately 10-12 HP (estimated, specific dyno figures vary)
Torque:
Approximately 7-8 lb-ft (estimated)
Carburetor:
Mikuni VM20SS or similar, single carburetor
Fuel Type:
Unleaded gasoline
Ignition System:
CDI (Capacitor Discharge Ignition)
Length:
Approx. 1,850 mm (72.8 in)
Width:
Approx. 760 mm (29.9 in)
Height:
Approx. 1,115 mm (43.9 in)
Wheelbase:
Approx. 1,270 mm (50.0 in)
Ground Clearance:
Approx. 300 mm (11.8 in)
Wet Weight:
Approx. 81 kg (179 lbs) for TT-R125L
Dry Weight:
Approx. 78 kg (172 lbs) for TT-R125L
Front Suspension Travel:
170 mm (6.7 in) for TT-R125L, 150 mm (5.9 in) for TT-R125E
Rear Suspension Travel:
160 mm (6.3 in) for TT-R125L, 140 mm (5.5 in) for TT-R125E
Front Tire Size:
2.50-17 4PR
Rear Tire Size:
3.00-14 4PR
Front Wheel:
17-inch spoke wheel
Rear Wheel:
14-inch spoke wheel
Oil Change Interval:
Typically every 1000-1500 km or 3 months (refer to manual for exact specification).
Air Filter Cleaning:
As needed, more frequently in dusty conditions (refer to manual).
Chain Lubrication Adjustment:
Every 500 km or as needed (refer to manual).
Valve Clearance Check:
Typically every 6000 km or 12 months (refer to manual).
Engine Oil Type:
Yamalube 4 (or equivalent SAE 10W-30 API SG or higher) - consult manual for exact spec.
Engine Oil Capacity:
Approx. 0.95 L (1.0 US qt) without filter change, 1.0 L (1.1 US qt) with filter change (verify in manual).
Brake Fluid Type:
DOT 3 or DOT 4 hydraulic brake fluid (non-silicone based).
Carburetor Performance:
Can be prone to clogging if fuel is not clean; requires regular cleaning and adjustment.
Suspension Wear:
Seals and bushings in suspension components may require replacement over time due to off-road use.
Electric Start Reliability:
The starter motor and battery system on the TT-R125E can be a point of failure if not properly maintained.
Heritage:
Yamaha Motor Corporation has a long-standing legacy in motorsports and recreational vehicles, known for innovation and reliability.
Evolution:
The TT-R line has been Yamaha's offering for smaller displacement, accessible off-road riding, evolving from earlier models with incremental improvements in suspension, engine tuning, and electric start options.
Manufacturing Location:
Primarily manufactured in Japan or Southeast Asia by Yamaha.
