Market Segment:
Dual-sport motorcycle, known for off-road capability and trail riding
Competitors 2001:
Honda CRF250, Kawasaki KLX250, Suzuki DR-Z250
Bike Attributes:
Reliable air-cooled engine, robust suspension, capable off-road performance, user-friendly for trail riding
Value:
Provides essential, detailed technical data required for maintaining and repairing the 2001 Yamaha TTR 250, ensuring longevity and optimal performance.
Engine And Drivetrain:
Complete engine disassembly, assembly, troubleshooting, and tuning; transmission service, clutch operation, gearbox internals
Fuel System:
Carburetor (Mikuni VM type), fuel tank, fuel lines, petcock service, jetting adjustments
Electrical System:
Ignition system (CDI), lighting, charging system (stator, rectifier/regulator), starting system (kick start), wiring diagrams, troubleshooting electrical faults
Suspension And Steering:
Front fork (telescopic, cartridge type) overhaul, rear shock absorber service, linkage maintenance, steering head bearing adjustment and replacement
Brakes:
Front and rear disc brake systems, hydraulic lines, caliper service, master cylinder overhaul, pad replacement, bleeding procedures
Cooling System:
Air-cooled engine (no radiator or coolant specifications required)
Exhaust System:
Exhaust pipe and muffler service, gasket replacement, noise regulations (if applicable)
Wheels And Tires:
Spoke wheel maintenance, tire mounting and balancing, tube replacement, wheel bearing service
Frame And Bodywork:
Frame inspection, body panel removal and installation, seat maintenance, luggage rack (if equipped)
Routine Maintenance:
Oil changes, filter replacements, chain adjustment and lubrication, spark plug checks, air filter cleaning/replacement
Troubleshooting:
Diagnostic charts for common running issues, electrical problems, and component failures
Repair And Rebuild:
Detailed step-by-step instructions for engine rebuilds, suspension overhauls, and component replacements
Specifications And Measurements:
Torque specifications for all fasteners, engine tolerances, valve clearances, ignition timing
Wiring Diagrams:
Comprehensive electrical schematics for all circuits
Depth:
Complete rebuild specifications, diagnostic procedures, and detailed service information, suitable for professional workshops and advanced enthusiasts
Engine Type:
Four-stroke, SOHC, 2-valve, Air-cooled
Displacement:
249 cc (249.4 cc)
Bore X Stroke:
73 mm x 59.6 mm
Horsepower Estimated:
Approx. 20-25 HP (at crankshaft, model dependent)
Torque Estimated:
Approx. 20-23 Nm (at crankshaft, model dependent)
Carburetor Model:
Mikuni VM33SS (or similar VM series)
Fuel Type:
Unleaded gasoline, minimum 87 octane
Oil Type Recommendation:
Yamalube 4 (or equivalent motorcycle specific SAE 10W-30, 10W-40, or 20W-40 API SE, SF, SG type)
Oil Capacity With Filter:
1.8 Liters (1.9 US qt)
Oil Capacity Without Filter:
1.6 Liters (1.7 US qt)
Ignition System:
CDI (Capacitor Discharge Ignition)
Spark Plug Type:
NGK CR7HSA or Denso U22HSR-U
Spark Plug Gap:
0.6 - 0.7 mm (0.024 - 0.028 in)
Transmission Type:
Constant mesh 6-speed sequential
Clutch Type:
Wet, multiple-disc, cable-operated
Gear Ratios:
Refer to manual for specific ratios (e.g., 1st: 2.571, 2nd: 1.812, 3rd: 1.350, 4th: 1.115, 5th: 0.960, 6th: 0.840)
Transmission Oil Type Recommendation:
Yamalube 4 (or equivalent motorcycle specific SAE 80 hypoid gear oil, API GL-4)
Transmission Oil Capacity:
0.65 Liters (0.69 US qt)
Safety Ratings:
N/A (Motorcycle, specific crash ratings not applicable in automotive sense)
Braking System:
Hydraulic front and rear disc brakes
Lighting:
Headlight, taillight, brake light, turn signals (market dependent)
Frame Construction:
Steel diamond frame for rigidity and durability
Engine Guard:
Optional or factory fitted engine protection (refer to specific model)
Engine Oil Change:
Every 3,000 km (1,800 miles) or 6 months, whichever comes first.
Oil Filter Change:
Replace at every oil change.
Air Filter Cleaning:
Clean every 1,000 km (600 miles) or more frequently in dusty conditions.
Spark Plug Check:
Check every 3,000 km (1,800 miles).
Valve Clearance Check:
Check every 6,000 km (3,600 miles).
Chain Lubrication And Adjustment:
Lubricate every 500 km (300 miles) and adjust as needed to maintain 15-25 mm (0.6-1.0 in) of slack.
Engine Oil Specification:
Yamalube 4 or equivalent SAE 10W-30, 10W-40, 20W-40 API SE, SF, SG.
Brake Fluid Specification:
DOT 3 or DOT 4 hydraulic brake fluid.
Transmission Oil Specification:
SAE 80 hypoid gear oil, API GL-4.
Common Wear Items:
Clutch plates, brake pads, wheel bearings, steering head bearings, fork seals can be subject to wear depending on usage.
Carburetor Issues:
Can require periodic cleaning and adjustment, especially if fuel is left in the system for extended periods. Jetting may need adjustment based on altitude/conditions.
Electrical Connections:
Corrosion on electrical connectors, particularly in off-road use, can lead to intermittent issues. Regular inspection and dielectric grease are recommended.
Brand Legacy:
Yamaha has a long-standing reputation for building reliable and performance-oriented motorcycles, particularly in the off-road and dual-sport segments.
Ttr Series Overview:
The TTR series represents Yamaha's lineage of accessible and capable off-road motorcycles, with the TTR250 being a popular model for trail riding and light dual-sport use.
Production Years:
The TTR250 model line was produced for a significant period, with the 2001 model representing a specific iteration within that range.
Manufacturing Location:
Likely manufactured in Japan or other Yamaha global facilities.
Industry Awards:
N/A (Specific awards not readily documented, but the model was well-regarded in its class).
User Reviews General Sentiment:
Users typically praise its reliability, ease of maintenance, and capability for trail riding and general off-road use.
Emissions Compliance:
Meets relevant emissions standards for its production year (specific details would be in the manual).