TY250B
Category: Trials
Manufacturer: Yamaha
Hits: 530
| Year | 1975 |
| Engine Class | 250 |
| VIN Prefix | 493 |
| Known VIN Range (Vehicle ID Numbers) | 000102 to |
| Tank Color(s) | Competition Yellow |
| Country of Sale | USA |
| Bore (MM) | 70 |
| Stroke (MM) | 64 |
| Displacement (CC) | 246 |
| Compression Ratio (to 1) | 6.0 |
| Autolube Injection? | Yes |
| Engine Cooling | Air |
| Carburetor Model | MIKUNI VM26SS |
| Ignition Type | Magneto |
| Ignition Timing MM (BTDC) | 3.1 |
| Fuel Capacity (L) | 5 |
| 2 Stroke Oil Tank Capacity (L) | ,35 |
| Gearbox Oil Capacity | 1.0 |
| Fork Oil Capacity (CC/Fork Leg) | 162 |
| Front Tire (stock) | 2.75 X 21 |
| Rear Tire (stock) | 4.00 x 18 |
| Front Brake Type | Drum |
| Rear Brake Type | Drum |
| Rear Suspension | Twin Shock |
| Overall Width (mm) | 835 |
| Ground Clearance (mm) | 280 |
| Wheelbase (mm) | 1,295 |
| Dry Weight (kg) | 93 |
| Spark Plug | NGK B7ES |
| Voltage | 6 Volt |