Model Variants:
Off-road/Dual-sport
Production Years Covered:
1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006
Engine Code:
Likely 4ES (for 4-valve, 250cc SOHC, 4-stroke)
Vin Code Year Representation:
Varies by year (e.g., X for 1999, Y for 2000, 1 for 2001... 6 for 2006)
Segment:
Lightweight dual-sport/enduro motorcycle
Target Audience:
Trail riders, recreational off-road enthusiasts, commuters seeking versatile transport
Key Competitors:
Honda CRF230F, Kawasaki KLR250, Suzuki DR-Z250, older KTM 200/250 models
Features Highlighted:
Durable engine, capable suspension, user-friendly operation, reliability
Cost Effectiveness:
Inexpensive way to maintain and repair the vehicle
Information Source:
Number one source for repair and service information
Engine Mechanical:
Yes (Top end, bottom end, valve train, cooling, lubrication)
Engine Electrical:
Yes (Ignition, charging, starting, CDI, sensors)
Emission Control:
Yes (If applicable to the model years/regions)
Fuel System:
Yes (Carburetor tuning, fuel lines, pump if applicable)
Suspension System:
Yes (Front forks, rear shock absorber, linkages)
Clutch System:
Yes (Clutch operation, plates, actuation)
Transmission System:
Yes (Manual transaxle, gear inspection, shifting mechanisms)
Driveshaft Axle:
Yes (Rear wheel drive components, sprockets, chain maintenance if applicable)
Steering System:
Yes (Handlebar, steering stem, bearings)
Brake System:
Yes (Front and rear brakes, hydraulic lines, calipers, master cylinders, pads)
Body Interior Exterior:
Yes (Body panels, seat, fenders, plastics)
Body Electrical System:
Yes (Lighting, instrumentation, wiring harnesses)
Restraint System:
Yes (Likely refers to rider safety features or specific tie-downs if applicable)
Preventive Maintenance:
Yes (Oil changes, filter replacements, chain adjustment, lubrication)
Troubleshooting:
Yes (Diagnostic procedures for various systems)
Repair Procedures:
Yes (Step-by-step instructions for component disassembly, repair, and reassembly)
Electrical Diagnostics:
Yes (Utilizing wiring diagrams for fault finding)
Component Overhaul:
Yes (Engine rebuilds, carburetor overhauls, suspension rebuilds)
Depth:
Comprehensive (Suitable for both DIYers and experienced mechanics, covers detailed repair and diagnostics)
Diagnostic Tools:
Implied use of standard motorcycle tools and possibly basic electrical testing equipment
Engine Type:
4-stroke, SOHC, 4-valve, Air-cooled
Displacement:
249cc (249 cm³)
Bore X Stroke:
73.0 mm x 59.6 mm (typical for this engine family)
Horsepower Estimate:
Approximately 20-23 HP (at the crank, dependent on specific tuning and region)
Torque Estimate:
Approximately 19-21 Nm (14-15 lb-ft)
Carburetor:
Mikuni VM33 (typical for this model, may vary)
Fuel Capacity:
Likely around 10-12 Liters (2.6-3.2 Gallons)
Ignition Type:
CDI (Capacitor Discharge Ignition)
Oil Type Recommendation:
Yamalube 4 (or equivalent API SE, SF, SG, SH, SJ, or higher quality SAE 10W-40 or 20W-50 motorcycle oil)
Oil Capacity With Filter Change:
Approximately 1.5-1.8 Liters (1.6-1.9 US qt)
Infotainment System:
N/A (Basic motorcycle instrumentation)
Driver Assistance Features:
N/A
Connectivity Features:
N/A
Instrument Cluster:
Analog speedometer, odometer, trip meter, engine temperature warning light, neutral indicator, turn signal indicators, high beam indicator
Engine Oil Change:
Every 3,000 km (1,860 miles) or 6 months
Oil Filter Replacement:
Every 3,000 km (1,860 miles) or annually, coinciding with oil changes
Air Filter Cleaning:
Every 1,000 km (620 miles) or more frequently in dusty conditions
Spark Plug Inspection:
Every 3,000 km (1,860 miles)
Valve Clearance Check:
Every 6,000 km (3,730 miles) or 12 months
Chain Lubrication:
Every 500 km (310 miles) or after washing/riding in wet conditions
Brake Fluid:
DOT 3 or DOT 4
Coolant Type:
Pre-mixed, ethylene glycol-based antifreeze (e.g., Yamalube Coolant)
Common Wear Items:
Clutch plates, brake pads, fork seals, chain and sprockets, carburetor jets (especially from ethanol exposure)
Carburetor Idling:
Some owners report occasional rough idling or jetting issues, often resolved with cleaning or adjustment.
Suspension Softness:
While good for its class, some aggressive riders may find the stock suspension a bit soft for hard off-road use.
Brand Legacy:
Yamaha has a long and successful history in motorcycle manufacturing, known for innovation and performance in off-road and street bikes.
Ttr Series Introduction:
The TTR line was Yamaha's answer to the growing demand for reliable, user-friendly off-road and dual-sport machines.
Ttr 250 Development:
The TTR 250 was designed to be a versatile machine capable of handling trails, fire roads, and even some street use. It aimed for a balance of performance and ease of use.
Manufacturing Location:
Likely Japan or other Yamaha manufacturing facilities