The TTR250L / TTR250LC, produced between 1999 and 2006, is a versatile dual-sport motorcycle renowned for its reliability and ease of maintenance. Engineered for both off-road trails and light on-road use, this model offers a balanced performance suitable for a wide range of riding conditions. Its four-stroke, DOHC, single-cylinder 249 cc engine, coupled with a 6-speed transmission, provides dependable power. The TTR250 series is recognized for its robust construction and user-friendly design, making it a popular choice among riders seeking a capable and durable machine for adventure and exploration.
This comprehensive workshop service manual covers the TTR250L / TTR250LC models from 1999 through 2006. It provides in-depth information on all major systems, including detailed engine breakdowns, chassis components, suspension, braking systems, and electrical systems. The manual outlines scheduled maintenance procedures, such as oil changes, filter replacements, and valve clearance checks, alongside troubleshooting guides for common issues and detailed repair instructions for everything from carburetor tuning to complete engine overhauls. This resource is essential for owners, mechanics, and technicians to ensure the optimal performance, longevity, and safe operation of their TTR250.
Model:
TTR250L / TTR250LC
Production Years:
1999-2006
Segment:
Dual-sport / Enduro motorcycle
Competitors:
Honda CRF250L, Kawasaki KLX250, Suzuki DR-Z250
Purpose:
Versatile off-road and on-road capability, known for reliability and ease of maintenance
Years Covered:
1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006
Type:
Workshop Service Manual
Engine:
Detailed breakdown, lubrication, cooling, fuel, ignition, starting, exhaust, emissions
Chassis:
Frame, suspension (front forks, rear shock absorber), steering, wheels, tires, brakes (front and rear)
Electrical:
Battery, charging system, ignition system, lighting, instrumentation, wiring diagrams
Maintenance:
Scheduled maintenance, oil changes, filter replacements, chain adjustment, brake pad inspection/replacement, spark plug service
Troubleshooting:
Diagnostic procedures for common problems, circuit testing, symptom analysis
Repair:
Engine overhauls, carburetor tuning, transmission servicing, suspension component replacement, electrical component repair, brake system repair
Depth:
Comprehensive, covering from basic checks to complete engine and chassis rebuilds
Quality:
High-resolution scans suitable for printing, clear diagrams and text
Binding:
N/A (Digital Download)
Paper:
N/A (Digital Download)
Engine Type:
Four-stroke, DOHC, single-cylinder
Bore X Stroke:
73.0 mm x 59.5 mm
Compression Ratio:
12.5:1
Horsepower:
Approximately 20-23 HP (varies by specific market and tune)
Torque:
Approximately 14-16 lb-ft (varies by specific market and tune)
Fuel Delivery:
Mikuni BST34 carburetor
Fuel Capacity:
2.6 gallons (9.8 Liters)
Fuel Type:
Unleaded gasoline, 91 octane or higher recommended
Oil Capacity:
1.7 Liters (with filter change)
Recommended Oil:
Yamalube 4 (or equivalent) SAE 10W-40 API SE, SF, SG or SH classification with JASO MA standard
Transmission Type:
6-speed constant mesh
Clutch Type:
Wet, multiple-disc
Gear Ratios:
Specific ratios detailed within the manual for each gear.
Final Drive:
O-ring sealed chain
Overall Length:
Approx. 85.0 in (2159 mm)
Overall Width:
Approx. 32.1 in (815 mm)
Overall Height:
Approx. 48.2 in (1225 mm)
Seat Height:
Approx. 35.0 in (889 mm)
Wheelbase:
Approx. 56.1 in (1425 mm)
Dry Weight:
Approx. 273 lbs (124 kg)
Wet Weight:
Approx. 291 lbs (132 kg) (estimated)
Ground Clearance:
Approx. 11.0 in (280 mm)
Crash Safety:
Not applicable (motorcycle)
Braking System:
Front: 245mm disc; Rear: 220mm disc
Suspension Features:
Front: Telescopic forks, 10.0 inches travel; Rear: Swingarm, Monocross suspension, 9.1 inches travel
Lighting:
Halogen headlight, LED taillight, turn signals
Display:
Analog speedometer, tachometer, odometer, trip meter, indicator lights (neutral, turn signal, high beam)
Ignition System:
CDI (Capacitor Discharge Ignition)
Oil Change Interval:
Every 3,000 km (1,864 miles) or 6 months, whichever comes first
Air Filter Cleaning:
Every 1,000 km (621 miles) or 3 months
Spark Plug Replacement:
Every 6,000 km (3,728 miles) or 12 months
Valve Clearance Check:
Every 6,000 km (3,728 miles) or 12 months
Coolant Type:
Permanent type antifreeze coolant (mixture of 50% ethylene glycol and 50% deionized water)
Common Wear Items:
Clutch plates, brake pads, chain and sprockets, fork seals, carburetor jetting needing periodic adjustment
Electrical Concerns:
Occasional issues with rectifier/regulator or stator, especially on higher mileage units.
Engine Performance:
Carburetor tuning can be sensitive to altitude and temperature changes, requiring attention for optimal performance.
Manufacturer Heritage:
Yamaha Motor Corporation, founded in 1955, is a renowned Japanese manufacturer of motorcycles, marine products, and other motorized vehicles. Known for performance, innovation, and durability.
Ttr Series Context:
The TTR line represents Yamaha's off-road focused motorcycles, offering a range of displacements for various skill levels. The TTR250 bridges the gap between smaller play bikes and larger competition machines.
Manufacturing Location:
Japan (Primary)
Segment Recognition:
Praised in its era for reliability and a good balance of off-road capability and street-friendliness, making it a popular choice for trail riding and light commuting.
