| MODEL | YAMAHA XT 600 1985 |
| Year | 1985 |
| Engine Type | Four stroke, single cylinder, SOHC, 4 valve |
| Displacement / Capacity | 595 cc / 36.3 cu in |
| Bore X Stroke | 95 x 84 mm |
| Compression Ratio | 8.5:1 |
| Cooling System | Air/oil cooled |
| Max Power | 34 kW / 46 hp @ 6000 rpm (38.0 hp at the rear tyre) |
| Max Torque | 51 Nm / 4.5 kgf-m @ 5750 rpm |
| Ignition | CDI |
| Induction | 27 mm dual-stage Teikei Y 27 PV carburettor |
| Start System | Kick |
| TRANSMISSION SPECS | |
| Lubrication | Dry sump, separate oil tank |
| Gear Box | 5 Speed |
| Clutch | — |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | — |
| Front Suspension | Telescopic, air assisted, 255 mm / 10.0 in travel |
| Rear Suspension | Monoshock swing arm, 236 mm / 9.2 in travel |
| Front Brakes | Single 267 mm disc |
| Rear Brakes | 150 mm drum |
| DIMENSION SPECS | |
| Overall Length | 2290 mm / 90.0 in |
| Overall Width | 845 mm / 33.2 in |
| Overall Height | 1100 mm / 43.3 in |
| Seat Height | 860 mm / 33.8 in |
| Wheelbase | 1435 mm / 56.4 in |
| Ground Clearance | 260 mm / 10.2 in |
| Dry Weight | 137 kg |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 3.00-21 |
| Rear Tyre | 4.60-18 |
| FUEL SYSTEM | |
| Fuel Capacity | 11 Litres / 2.9 US gal |
| Fuel Consumption | 61 mpg |
| Top Speed | 160 km/h / 100 mph |
The XT 600 replaced the 550 with a 595 cc air/oil-cooled four-valve single, dry-sump lubricated and with a front disc brake. A street/trail bike with YZ-inspired styling, it was smooth and strong in the midrange but geared tall for tight trails. It competed with Honda's XL600R and Kawasaki's KLR600. The 1985 model is unchanged in the published figures.
