1997 Yamaha TTR250 Specifications and Specs
Specifications and workshop reference information for the 1997 Yamaha TTR250, including engine, chassis, service data and setup details.
Note: Specs are compiled from factory data, manuals and owner feedback. Bikes vary — if yours is different, jump into the forum and share it.
General Specifications
| Engine Type | Air-cooled 4-stroke single, DOHC, 4-valve |
| Displacement | 249 cc |
| Bore × Stroke | 73.0 mm × 59.6 mm |
| Compression Ratio | 10.2:1 |
| Maximum Power | ~28 hp @ 8500 rpm |
| Maximum Torque | ~27 Nm @ 7000 rpm |
| Carburetor | Teikei Y30P |
| Lubrication | Wet sump |
| Fuel Mix Ratio | N/A (4-stroke) |
| Ignition | CDI |
| Spark Plug | NGK CR9E |
| Spark Plug Gap | 0.7–0.8 mm |
| Intake | 0.05 – 0.10 mm (0.002 – 0.004 in) |
| Exhaust | 0.10 – 0.15 mm (0.004 – 0.006 in) |
Transmission
| Transmission Type | Constant mesh, 6-speed |
| Clutch | Wet multi-plate |
| Primary Reduction | 2.952 |
| Final Reduction | 3.571 (14T / 50T) |
| Overall Reduction | N/A |
Dimensions
| Overall Length | 2175 mm |
| Overall Width | 805 mm |
| Overall Height | 1210 mm |
| Wheelbase | 1425 mm |
| Ground Clearance | 300 mm |
| Fuel Tank Capacity | 9.0 L |
Chassis
| Frame Type | Steel semi-double cradle |
| Caster Angle | 27.0° |
| Trail | 113 mm |
| Front Suspension | Telescopic fork |
| Rear Suspension | Monocross swingarm |
| Front Suspension Travel | 280 mm |
| Rear Suspension Travel | 280 mm |
Brakes & Wheels
| Front Tire | 3.00-21 |
| Rear Tire | 4.60-18 |
| Front Brake | Hydraulic single disc |
| Rear Brake | Hydraulic single disc |
250cc Other Specs
Community
VMX Owners Forum
Discuss vintage motocross bikes, restorations, tuning and riding.
