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The 1982 Yamaha XJ900 Seca and 1983 Triumph T140 TSX are both iconic 1980s standards that defined their respective markets.
The 1982 Yamaha XJ900 Seca from Japan was powered by a 853cc DOHC inline-4 producing 88hp at 8500rpm. Weighing 230.0kg (507 lbs) and with a seat height of 810mm, it was aimed at standard riders.
The 1983 Triumph T140 TSX, hailing from United Kingdom, by contrast offered 744cc of OHV twin power, delivering 50hp at 6500rpm. Tipping the scales at 188.0kg (414 lbs) with a top speed of 170km/h (106 mph), it offered a distinct riding experience. 1980s motorcycles are the rising stars of the collector market. Early sportbikes and final-generation air-cooled models are gaining strong interest.
The 1982 Yamaha XJ900 Seca from Japan was powered by a 853cc DOHC inline-4 producing 88hp at 8500rpm. Weighing 230.0kg (507 lbs) and with a seat height of 810mm, it was aimed at standard riders.
The 1983 Triumph T140 TSX, hailing from United Kingdom, by contrast offered 744cc of OHV twin power, delivering 50hp at 6500rpm. Tipping the scales at 188.0kg (414 lbs) with a top speed of 170km/h (106 mph), it offered a distinct riding experience. 1980s motorcycles are the rising stars of the collector market. Early sportbikes and final-generation air-cooled models are gaining strong interest.
Specifications Comparison
| 1982 Yamaha XJ900 Seca | 1983 Triumph T140 TSX | |
|---|---|---|
| Displacement | 853 cc | 744 cc |
| Power | 88 hp | 50 hp |
| Torque | 74.0 Nm | 54.0 Nm |
| Cylinders | 4 | 2 |
| Top Speed | 210 km/h | 170 km/h |
| Quarter Mile | — | — |
| Dry Weight | 230.0 kg | 188.0 kg |
| Wet Weight | 248.0 kg | 202.0 kg |
| Seat Height | 810 mm | 790 mm |
| Wheelbase | 1490 mm | 1410 mm |
| Fuel Capacity | 20.0 L | 14.0 L |
| Gears | 5 -speed | 5 -speed |
The Verdict
For pure standard performance, the 1982 Yamaha XJ900 Seca has the edge thanks to more power (88hp vs 50hp) and a higher top speed. The 1983 Triumph T140 TSX, however, excels when all-round versatility and everyday riding is the priority and offers a lighter package. Parts availability is good for the 1982 Yamaha XJ900 Seca and moderate for the 1983 Triumph T140 TSX — an important factor for any restoration project.
About the 1982 Yamaha XJ900 Seca
Introduced in 1982, the 1982 Yamaha XJ900 Seca features a 853cc DOHC inline-4 engine producing 88hp, establishing itself as a notable standard motorcycle.
Full 1982 Yamaha XJ900 Seca Profile →About the 1983 Triumph T140 TSX
Introduced in 1983, the 1983 Triumph T140 TSX features a 744cc OHV twin engine producing 50hp, establishing itself as a notable standard motorcycle.
Full 1983 Triumph T140 TSX Profile →