| MODEL | YAMAHA TX 750 1973 |
| Year | 1973 |
| Engine Type | Four stroke, parallel twin cylinder, SOHC, 2 valves per cylinder |
| Displacement / Capacity | 743 cc / 45.3 cu in |
| Bore X Stroke | 80 x 74 mm |
| Compression Ratio | 8.8:1 |
| Cooling System | Air cooled |
| Max Power | 45.9 kW / 63 hp @ 6100 rpm |
| Max Torque | 7 kgf-m / 50.6 lb-ft @ 6000 rpm |
| Ignition | — |
| Induction | Carburettor |
| Start System | Electric & kick |
| TRANSMISSION SPECS | |
| Lubrication | Forced dry sump |
| Gear Box | 5 Speed |
| Clutch | — |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | — |
| Front Suspension | Telescopic forks |
| Rear Suspension | Dual shock absorbers |
| Front Brakes | Single or dual 300 mm disc, 2 piston calipers |
| Rear Brakes | 180 mm drum |
| DIMENSION SPECS | |
| Overall Length | 2205 mm / 86.8 in |
| Overall Width | 909 mm / 35.8 in |
| Overall Height | 1165 mm / 45.9 in |
| Seat Height | 810 mm / 31.9 in |
| Wheelbase | 1455 mm / 57.3 in |
| Ground Clearance | 160 mm / 6.3 in |
| Dry Weight | — |
| Wet Weight | 235 kg / 518 lb |
| WHEEL SPECS | |
| Front Tyre | 3.50-19 |
| Rear Tyre | 4.00-18 |
| FUEL SYSTEM | |
| Fuel Capacity | 14 Litres / 3.7 US gal |
| Fuel Consumption | — |
| Top Speed | — |
In 1973 the TX750 carried on with the Omni-Phase balanced twin while Yamaha worked through its early reliability problems with revised oiling parts. Production was split into two batches that year. Reviewers praised its smoothness but found performance modest next to the Honda 750 four.
