| MODEL | YAMAHA TT 600 1985 - 1987 |
| Year | 1985 - 1987 |
| Engine Type | Four stroke, single cylinder, SOHC, 4 valve |
| Displacement / Capacity | 595 cc / 36.5 cu in |
| Bore X Stroke | 95 x 84 mm |
| Compression Ratio | 8.5:1 |
| Cooling System | Air cooled |
| Max Power | 34 kW / 45 hp @ 6500 rpm |
| Max Torque | 50 Nm / 4.7 kgf-m @ 5500 rpm |
| Ignition | CDI |
| Induction | 27 mm dual-stage Teikei Y27PVX1 carburettor |
| Start System | Kick |
| TRANSMISSION SPECS | |
| Lubrication | Dry sump |
| Gear Box | 5 Speed |
| Clutch | — |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | — |
| Front Suspension | 43 mm telescopic forks; 300 mm / 11.8 in travel |
| Rear Suspension | Monocross single shock, adjustable compression, preload and rebound; 270 mm / 10.6 in travel |
| Front Brakes | Single 267 mm disc |
| Rear Brakes | 150 mm drum |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | — |
| Wheelbase | — |
| Ground Clearance | — |
| Dry Weight | 138 kg / 304.2 lb |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 3.00-21 |
| Rear Tyre | 4.60-18 |
| FUEL SYSTEM | |
| Fuel Capacity | 13 Litres / 3.4 US gal |
| Fuel Consumption | — |
| Top Speed | 146.4 km/h |
The second TT 600 series gained a front disc brake, a larger 13 litre tank and a heavier build. Engine output stayed at 34 kW, with a measured 38.2 hp at the rear wheel in the test. It was quick for its time, reaching about 146 km/h.
