| MODEL | YAMAHA YDS-6 1970 - 1971 |
| Year | 1970 - 1971 |
| Engine Type | Air-cooled, two stroke, piston-port, parallel twin |
| Displacement / Capacity | 247 cc / 15.0 cu in |
| Bore X Stroke | — |
| Compression Ratio | — |
| Cooling System | Air-cooled |
| Max Power | — |
| Max Torque | — |
| Ignition | — |
| Induction | — |
| Start System | Kick |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | 5 Speed |
| Clutch | — |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | — |
| Front Suspension | — |
| Rear Suspension | — |
| Front Brakes | — |
| Rear Brakes | — |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | — |
| Wheelbase | — |
| Ground Clearance | — |
| Dry Weight | — |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | — |
| Rear Tyre | — |
| FUEL SYSTEM | |
| Fuel Capacity | — |
| Fuel Consumption | — |
| Top Speed | — |
The YDS-6 belongs to the late-1960s/early-1970s generation of Yamaha's 250 cc air-cooled two-stroke twin sports roadsters, with a five-speed gearbox and chain drive. Reliable model-specific figures could not be confirmed, so this page is kept sparse.
