Category:
Entry-level to intermediate off-road/trail motorcycle
Target Audience:
Beginner riders, youth riders, trail enthusiasts, and recreational off-road riders
Competitors:
Honda CRF100F/150F, Kawasaki KLX110/140, Suzuki DR-Z125
Versatility:
Suitable for trail riding, recreational use, and even some light motocross applications
Reliability:
Yamaha's reputation for durable and reliable engines
Ease Of Use:
User-friendly design for less experienced riders
Model Differences:
LW model typically features larger wheels for increased ground clearance and a more stable ride
Engine:
Engine disassembly, assembly, inspection, troubleshooting, tuning, and component specifications
Fuel System:
Carburetor (Mikuni VM20), fuel tank, fuel lines, fuel filter, and related components
Ignition System:
CDI (Capacitor Discharge Ignition), spark plug, ignition coil, stator, and wiring
Exhaust System:
Exhaust pipe, muffler, heat shields, and emissions control (if applicable)
Drivetrain:
Clutch operation (wet, multi-plate), transmission gears, shift mechanism, drive chain, and sprockets
Frame And Suspension:
Frame structure, front forks (conventional), rear shock absorber (monoshock), swingarm, and linkages
Wheel And Tires:
Wheels (spoked), hubs, spokes, bearings, tire types, pressures, and mounting
Braking System:
Front drum brake, rear drum brake (standard TT-R125N) or front disc brake, rear drum brake (TT-R125LW(N)), brake levers, cables/lines, pads/shoes, and adjustment
Electrical System:
Wiring harness, battery, lighting (headlight, taillight, brake light), horn, fuses, and switches
Controls:
Throttle, clutch lever, brake levers, shifter lever, kick starter, and handlebar components
Bodywork:
Plastics, seat, fuel tank cover, fenders, and graphics
Maintenance:
Routine checks, lubrication, filter changes, valve clearance adjustment, brake adjustments, chain maintenance
Troubleshooting:
Diagnostic charts for common problems related to engine starting, performance, electrical issues, and more
Repair:
Step-by-step instructions for component removal, disassembly, inspection, repair, and reassembly
Rebuild:
Detailed procedures for engine and transmission rebuilds
Adjustments:
Carburetor tuning, clutch adjustment, brake adjustment, suspension setup
Depth:
Highly detailed, covering everything from basic maintenance to full engine and chassis overhauls. Factory-level diagnostic information.
Length:
Approx. 71.7 in (1820 mm) for TT-R125N, 77.6 in (1970 mm) for TT-R125LW
Width:
Approx. 30.1 in (765 mm) for TT-R125N, 31.5 in (800 mm) for TT-R125LW
Height:
Approx. 41.7 in (1060 mm) for TT-R125N, 44.7 in (1135 mm) for TT-R125LW
Wheelbase:
Approx. 49.4 in (1255 mm) for TT-R125N, 52.4 in (1330 mm) for TT-R125LW
Dry Weight:
Approx. 172 lbs (78 kg) for TT-R125N, 183 lbs (83 kg) for TT-R125LW
Curb Weight:
Not specified in product info
Maximum Load Capacity:
Not specified in product info
Oil Change Interval:
Typically every 1000 km (600 miles) or annually, refer to manual for specific interval.
Air Filter Cleaning:
Every 600 km (375 miles) or more frequently in dusty conditions.
Valve Clearance Check:
Every 3000 km (1800 miles) or as per manual recommendations.
Chain Adjustment Lubrication:
Check and lubricate every 500 km (300 miles) or as needed.
Engine Oil Type:
Yamalube 4 (or equivalent) SAE 10W-30 API SE, SF, SG, SH, SJ, SL or higher, JASO MA certified
Engine Oil Capacity:
Approx. 1.10 L (1.16 US qt) without filter change, 1.20 L (1.27 US qt) with filter change
Fork Oil Type:
Yamalube Fork Oil G10 (or equivalent)
Brake Fluid Type:
DOT 3 or DOT 4
Carburetor Fouling:
Common in older bikes due to fuel quality or lack of regular cleaning, can lead to poor running.
Clutch Wear:
Normal wear and tear over time, clutch plates may need replacement.
Suspension Seals:
Front fork seals can sometimes leak, requiring replacement.
Kickstarter Return Spring:
Can weaken or break over extensive use, affecting kickstarter engagement.
