Target Audience:
Enthusiast riders, DIY mechanics, and service technicians working on the TTR 125
Segment:
Entry-level to intermediate off-road/trail riding motorcycle
Competitors 2002:
Honda CRF150F, Kawasaki KLX140 (later models), Suzuki DR-Z125
Vehicle Appeal:
Reliability, ease of maintenance, versatility for trail riding and recreational use
Manual Value:
Empowers owners to perform maintenance and repairs, saving time and money
Engine:
Top-end, bottom-end, lubrication, cooling, ignition, starting system
Transmission:
Gearbox, clutch, shifting mechanism, internal components
Chassis:
Frame, suspension (front and rear), steering, wheels, tires
Brakes:
Front and rear braking systems (hydraulic/cable), brake fluid, pads, rotors
Electrical:
Ignition system, charging system, lighting, wiring diagrams, troubleshooting
Fuel System:
Carburetor, fuel tank, fuel lines, fuel filter
Exhaust System:
Muffler, header pipe, emissions controls (if applicable)
Bodywork And Trim:
Fenders, seat, handlebars, fuel tank cover, plastics
Maintenance:
Regular service checks, oil changes, filter replacements, chain adjustment, spark plug service
Troubleshooting:
Diagnostic procedures for common problems, symptom-based troubleshooting guides
Repair:
Step-by-step instructions for component removal, disassembly, inspection, repair, and reassembly
Engine Overhaul:
Detailed procedures for engine disassembly, part inspection, and reassembly
Suspension Service:
Fork seal replacement, shock absorber service, linkage lubrication
Carburetor Adjustment And Rebuild:
Jetting information, idle speed adjustment, float bowl service
Electrical System Diagnostics:
Component testing, voltage checks, troubleshooting wiring faults
Depth Level:
Comprehensive: Covers routine maintenance to complete engine and component rebuilds
Diagnostic Information:
Detailed troubleshooting flowcharts and symptom analysis
Torque Specifications:
Precise torque values for all critical fasteners
Clearances And Tolerances:
Specifications for valve clearances, piston-to-cylinder wall, and other critical component clearances
Digital Format:
PDF (Portable Document Format) - commonly searchable and printable
Print Clarity:
High-resolution scans of original diagrams and text for clear readability
Diagram Quality:
Sharp, detailed line drawings and exploded views
Print Binding:
Comb-binding, coil-binding, or perfect-bound (depending on publisher)
Print Paper:
Durable paper stock suitable for workshop environments
Engine Type:
Four-stroke, SOHC, air-cooled
Displacement:
124 cc (Cubic Centimeters)
Bore X Stroke:
54 mm x 54.5 mm (typical, confirm in manual)
Compression Ratio:
Approximately 9.5:1 (typical, confirm in manual)
Horsepower:
Approx. 10-12 HP (at crankshaft, confirm in manual)
Torque:
Approx. 6-7 lb-ft (at crankshaft, confirm in manual)
Carburetor Model:
Mikuni VM20 (typical, confirm in manual)
Fuel Type:
Unleaded gasoline
Fuel Tank Capacity:
Approximately 1.6 Gallons (confirm in manual)
Length:
Approximately 74.6 inches (1895 mm) (confirm in manual)
Width:
Approximately 31.7 inches (805 mm) (confirm in manual)
Height:
Approximately 43.9 inches (1115 mm) (confirm in manual)
Wheelbase:
Approximately 50.2 inches (1275 mm) (confirm in manual)
Dry Weight:
Approximately 174 lbs (79 kg) (confirm in manual)
Wet Weight:
Approximately 183 lbs (83 kg) (estimate, confirm in manual)
Ground Clearance:
Approximately 11.0 inches (279 mm) (confirm in manual)
Oil Change Interval:
Every 3000 km or 12 months (typical, confirm in manual for specific riding conditions)
Air Filter Cleaning:
Every 1000 km or as needed based on riding environment (confirm in manual)
Valve Clearance Check:
Every 6000 km or 12 months (typical, confirm in manual)
Engine Oil Type:
Yamalube 4 (or equivalent API SG or higher, SAE 10W-40) - consult manual for exact specification
Engine Oil Capacity:
Approximately 1.0 Liters (confirm in manual)
Brake Fluid Type:
DOT 3 or DOT 4 (confirm in manual)
Common Wear Items:
Clutch plates, brake pads, chain and sprockets, tires, wheel bearings (typical for off-road use)
Potential Carburetor Issues:
Clogging due to fuel contamination, idle mixture adjustment
Suspension Maintenance:
Regular fork seal checks and replacement, rear shock absorber maintenance
Yamaha Legacy:
Yamaha Motor Company is a renowned Japanese manufacturer of motorcycles, marine products, and other motorized products with a rich history of innovation and performance.
Ttr Lineup:
The TTR series represents Yamaha's line of reliable and user-friendly off-road motorcycles, catering to various skill levels and engine sizes. The TTR125 has been a popular choice for younger riders and casual trail enthusiasts.
Production Era:
The TTR 125 was introduced in the early 2000s and has seen various iterations, including electric start and kick start models, as well as different suspension setups (e.g., standard, Big Wheel).
