1981 Yamaha TT250 Specifications and Specs
Specifications and workshop reference information for the 1981 Yamaha TT250, 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
| Manufacturer | Yamaha Motor Co., Ltd. |
| Model | TT250H |
| Year | 1981 |
| Model Code | 3Y0 |
| Motorcycle Type | Off-road / trail |
| Country of Origin | Japan |
| Dry Weight | 107 kg |
| Fuel Capacity | 7.2 litres |
Engine
| Engine Type | Air-cooled, four-stroke, single-cylinder, SOHC, 2-valve |
| Displacement | 249 cc |
| Bore | 75.0 mm |
| Stroke | 56.5 mm |
| Maximum Power | 23 hp at 8,000 rpm (claimed) |
| Maximum Torque | 2.15 kg·m at 7,000 rpm (claimed) |
| Carburettor | Mikuni VM30 | Replacement Options |
| Ignition | CDI |
| Starting System | Primary kick start |
| Spark Plug | NGK BP7ES |
Transmission
| Transmission | 5-speed manual |
| Clutch | Wet multi-plate |
| Final Drive | Chain |
| Drive Chain | 520 |
| Front Sprocket | 14 teeth |
| Rear Sprocket | 49 teeth |
Chassis and Suspension
| Frame | Tubular steel, single front downtube |
| Front Suspension | Telescopic fork, coil spring, oil damped, 230 mm travel | Fork Oil Levels |
| Rear Suspension | Monoshock, adjustable spring preload, 205 mm travel | Rear Suspension Setup |
Brakes
| Front Brake | Drum |
| Rear Brake | Drum |
Wheels and Tyres
250cc Other Specs
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