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General| Engine Type | Liquid-cooled, 4-stroke, DOHC, 4-valve |
|---|---|
| Displacement | 250cc |
| Bore x Stroke | 77.0mm x 53.6mm |
| Compression Ratio | 13.5:1 |
| Ignition | CDI |
| Transmission | 5-speed |
| Final Drive | Chain |
| Front Brake | Hydraulic single disc brake, 250mm |
| Rear Brake | Hydraulic single disc brake, 245mm |
| Front Tire | 80/100-21 |
| Rear Tire | 100/90-19 |
| Ground Clearance | 14.2 in |
| Width | 32.5 in |
| Front Suspension | KYB Speed-Sensitive System, inverted fork, 12.2 inches travel |
| Fuel Capacity | 2.0 gallons |
| Wet Weight | 231 lb |
Explains the purpose of the manual and Yamaha's quality standards for the motorcycle.
Crucial safety guidelines for operating the machine, including protective apparel and maintenance.
Explains how to navigate the manual using its structure and fore-edge symbols.
Describes the step-by-step procedure format and notation for faulty components.
Details important labels on the vehicle for safe operation and reference.
Identifies and labels various parts of the motorcycle with numerical references.
Explains throttle operation for acceleration and deceleration.
Describes fuel flow control with ON and OFF positions.
Specifies recommended fuel type and precautions for refueling.
Recommended break-in steps for optimal performance and durability.
Provides general technical specifications for the motorcycle model.
Schedule for routine maintenance and lubrication based on time or usage.
Procedures for checking and maintaining coolant levels safely.
Procedures for draining and refilling engine oil and filter.
Detailed procedure for setting valve clearances when engine is cold.
Steps for removing air from the hydraulic brake system.
How to adjust front fork rebound damping for desired performance.
Procedure to adjust rear shock spring preload for rider preference.
How to check and adjust tire pressure based on circuit conditions.
Inspection and adjustment of steering head for smooth operation.
Steps for removing the front wheel assembly.
Steps for removing the rear wheel assembly.
Steps for removing the front brake system components.
Procedure for checking and refilling brake fluid.
Exploded view and parts list for front fork disassembly.
Steps for washing, filling, and assembling the front fork.
Steps for removing the handlebar assembly and related controls.
Steps for installing the handlebar, upper/lower holders, and controls.
Steps for removing the steering assembly components.
Inspection and adjustment of the steering head bearings and stem.
Steps for removing the swingarm assembly and related parts.
Steps for installing the swingarm assembly and components.
Steps for removing the rear shock absorber assembly.
Inspection of damper rod, spring, and bearings for wear or damage.
Steps for installing the rear shock absorber assembly and components.
Identifies electrical components and presents the motorcycle's wiring diagram.
Procedure for testing spark plug gap and spark output.
Inspection of the CDI magneto's pickup coil resistance.
Steps for replacing and adjusting the throttle position sensor.
General principles of carburetor adjustment considering atmospheric conditions.
How to adjust the main jet for fuel mixture richness at full throttle.
Procedure for adjusting the pilot screw for low-speed fuel mixture.
Adjusting front fork settings based on identified symptoms.
Adjusting rear shock absorber settings based on identified symptoms.
