Target Audience:
Owners and technicians seeking to maintain, repair, or restore the Yamaha TTR250/TT250R dual-sport motorcycle.
Value Proposition:
Provides comprehensive, factory-authorized information essential for the longevity and proper functioning of the vehicle.
Alternatives:
Owner's Manual (less technical), aftermarket repair manuals (variable quality and completeness).
Feature Highlight 1:
Authentic Factory Service Manual directly from Yamaha (or authorized equivalent).
Feature Highlight 2:
Detailed illustrations and wiring diagrams are critical for accurate diagnosis and repair.
Feature Highlight 3:
Covers the entire production run specified, ensuring relevance for a wide range of models.
Engine:
Complete engine overhaul, top end, bottom end, valve train, lubrication, cooling.
Fuel System:
Carburetor servicing, fuel tank, fuel lines, petcock, fuel filter.
Ignition System:
CDI unit, ignition coil, spark plug, wiring.
Transmission Drivetrain:
Clutch operation, gearbox disassembly and reassembly, shift mechanism, final drive (chain and sprockets).
Suspension:
Front fork (telescopic, conventional) servicing, rear shock absorber inspection and replacement, linkage systems.
Brakes:
Front and rear disc brake systems, caliper servicing, master cylinder, brake lines, bleeding procedures.
Electrical System:
Wiring diagrams, lighting, charging system (stator, rectifier/regulator), battery, starting system (kick start primary).
Chassis Frame:
Frame inspection, sub-frame, steering head bearings, swingarm inspection and maintenance.
Wheels Tires:
Wheel bearing inspection, rim and spoke maintenance, tire replacement guidelines.
Exhaust System:
Muffler and header pipe servicing, gasket replacement.
Controls:
Throttle, clutch, and brake lever adjustment and servicing, footpegs, handlebars.
Maintenance:
Routine maintenance, lubrication, adjustments, fluid changes, filter replacements.
Troubleshooting:
Systematic diagnostic procedures for common and uncommon issues.
Disassembly Reassembly:
Complete step-by-step instructions for all major components and systems.
Rebuilds:
Detailed procedures for engine rebuilds, suspension overhauls, and brake system overhauls.
Wiring Diagrams:
Comprehensive, high-quality wiring diagrams for electrical system diagnostics and repairs.
Torque Specifications:
Essential torque values for all critical fasteners throughout the motorcycle.
Depth Of Coverage:
Factory-level, comprehensive coverage suitable for professional mechanics and experienced DIY enthusiasts.
Diagnostic Capability:
Enables in-depth diagnostics for all mechanical and electrical systems.
Visual Aids:
Hundreds of high-quality photos illustrating disassembly and reassembly procedures.
File Type:
PDF (Portable Document Format)
Print Readability:
High Quality, ensuring clear text and images for printing.
Printability:
Fully Printable, allowing users to print sections or the entire manual as needed.
Binding Type Provided By User:
Not applicable (digital file)
Recommended Paper Type For Printing:
Standard printer paper (8.5"x11" or A4), heavier stock recommended for frequently referenced sections.
Bookmark Structure:
Bookmarked for easy navigation and quick access to specific chapters and sections.
Text Searchability:
Assumed searchable text content within the PDF format.
Engine Type:
Four-stroke, SOHC, 2-valve
Engine Displacement:
249 cc (250 class)
Bore X Stroke:
Typically around 73.0 mm x 59.0 mm (specific to TTR250, confirm in manual).
Compression Ratio:
Around 9.5:1 to 10.0:1 (specific to TTR250, confirm in manual).
Cooling System:
Air-cooled
Lubrication System:
Wet sump
Horsepower Estimate:
Estimated 20-25 HP at the crank (confirm in manual for specific dyno figures).
Torque Estimate:
Estimated 15-18 lb-ft (confirm in manual for specific dyno figures).
Carburetor Type:
Single Mikuni carburetor (e.g., VM30 or similar, confirm in manual).
Fuel Type:
Unleaded gasoline
Fuel Tank Capacity:
Typically around 10-12 liters (confirm in manual).
Overall Length:
Approximately 2150 mm (confirm exact spec in manual).
Overall Width:
Approximately 815 mm (confirm exact spec in manual).
Overall Height:
Approximately 1205 mm (confirm exact spec in manual).
Seat Height:
Approximately 880 mm (confirm exact spec in manual).
Dry Weight:
Approximately 112 kg (confirm exact spec in manual).
Wet Weight Estimate:
Around 125 kg (with fluids, confirm exact spec in manual).
Front Tire Size:
Typically 80/100-21 (confirm in manual).
Rear Tire Size:
Typically 110/100-18 (confirm in manual).
Wheelbase:
Approximately 1405 mm (confirm exact spec in manual).
Safety Certification:
Meets relevant country-specific safety standards (e.g., DOT, ECE) for motorcycles of its era, detailed within manual if applicable.
Braking System:
Hydraulic disc brakes front and rear for responsive stopping power.
Suspension Stability:
Designed for stability in various off-road and on-road conditions.
Frame Design:
Robust frame construction providing rider support and control.
Lighting:
Headlight, taillight, and brake light for visibility.
Oil Change Interval:
Every 3,000 km or 6 months, whichever comes first (refer to manual for exact interval and specific conditions).
Air Filter Cleaning:
Inspect every 1,000 km, clean or replace as needed (more frequently in dusty conditions).
Valve Clearance Check:
Every 6,000 km or 12 months (confirm in manual).
Spark Plug Replacement:
Typically every 10,000 km or as needed, check condition at each service.
Engine Oil Grade:
Yamalube 4 (or equivalent) SAE 10W-30 or SAE 20W-40 API SG or higher (confirm in manual).
Engine Oil Capacity:
Approximately 1.7 - 1.8 liters without filter change, 1.9 - 2.0 liters with filter change (confirm in manual).
Brake Fluid Type:
DOT 4 recommended for hydraulic brake systems (confirm in manual).
Coolant Type:
N/A (Air-cooled engine).
Common Wear Items:
Clutch plates, brake pads, wheel bearings, chain and sprockets, fork seals due to off-road use.
Carburetor Tuning:
Carburetor can require periodic adjustment or cleaning for optimal performance, especially after extended storage or significant altitude changes.
Electrical Connections:
Check for corrosion or looseness in electrical connectors, particularly with off-road exposure.
Exhaust Flange Gasket:
Exhaust header flange gasket can sometimes leak, requiring replacement.
Yamaha Legacy:
Yamaha Motor Company has a long-standing reputation for producing reliable and high-performance motorcycles across various segments, including off-road and dual-sport.
Ttr Series:
The TTR series represents Yamaha's commitment to accessible and capable off-road motorcycles, with the TTR250 bridging the gap between smaller trail bikes and larger competition models.
Tt250R Context:
The TT250R was a significant model in the dual-sport category, known for its blend of trail capability and road legality. The TTR250 builds upon this legacy.
Production Years Covered By Manual:
1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006
Manufacturing Origin:
Typically manufactured in Japan by Yamaha Motor Co., Ltd.
Motorcycle Reviews:
The TTR250/TT250R generally received positive reviews for its versatility, reliability, and capability in its class. Specific awards are less common for individual service manuals.
Manual Quality Rating:
High (implied by 'Factory Service Repair Manual', 'Hight Quality', 'Fully Printable', and comprehensive coverage).
Document Standard:
Adheres to typical factory service manual standards for technical documentation and clarity.
