01/09/2026
# 1972 Yamaha TX750 — Innovation in Yamaha’s Superbike Era https://global.yamaha-motor.com/showroom/cp/collection/tx750/
The **1972 Yamaha TX750** marked an important chapter in Yamaha’s move into the large-displacement four-stroke motorcycle market. Developed as a more refined and comfortable high-performance machine, the TX750 followed the earlier XS-1 and combined Yamaha’s engineering ambition with the growing demand for powerful Japanese superbikes.
At its heart was a **743cc air-cooled parallel-twin, four-stroke engine**, featuring a **SOHC, two-valve-per-cylinder design** and Yamaha’s innovative **balance-shaft system**. The balance shaft was designed to reduce the vibration normally associated with a large parallel twin, giving the TX750 a remarkably smooth character for its time. Yamaha envisioned it as a sophisticated flagship capable of delivering strong performance without sacrificing touring comfort.
However, the TX750 entered an increasingly competitive market. The arrival of the **Honda CB750 Four**, followed by machines such as the **Kawasaki Z1 900**, raised expectations for multi-cylinder performance, higher output, and outright speed. Compared with these rivals, the TX750’s smooth and relaxed parallel-twin character made it a distinctive motorcycle, but one that struggled to dominate the rapidly evolving superbike class.
The early TX750 also faced mechanical challenges. Problems associated with the balance-shaft and lubrication system could contribute to oil aeration, reduced oil pressure, and overheating under certain conditions. Yamaha introduced improvements during the model’s production, but the early reliability issues affected the motorcycle’s reputation and limited its commercial success.
Today, the **1972 Yamaha TX750** is remembered as one of the most intriguing and technically ambitious motorcycles of Yamaha’s early four-stroke era. Its relatively short production history, unusual engineering, and place in the fierce Japanese superbike competition of the early 1970s have made it an especially interesting machine for vintage motorcycle enthusiasts and collectors.
# # # Specifications
* **Engine:** 743cc air-cooled parallel twin, 4-stroke
* **Valve Train:** SOHC, 2 valves per cylinder
* **Maximum Power:** Approximately 63 PS (46.3 kW) @ 6,500 rpm
* **Maximum Torque:** 68.6 Nm @ 6,000 rpm
* **Transmission:** 5-speed manual
* **Top Speed:** Approximately 110 mph (177 km/h)
* **Production Debut:** 1972
*“A fascinating chapter in Yamaha history — ambitious engineering, distinctive character, and a bold attempt to challenge the superbike establishment.”*
