The Yamaha TDM 850 was a motorcycle produced between 1991 and 1992. It had a four stroke, parallel twin-cylinder engine with 5 valves per cylinder and a capacity of 849cc. The bike was liquid-cooled with a compression ratio of 9.2:1 and had an induction of 2x Mikuni BDST88 carburetors. The ignition was digital and had an electric start. The TDM 850 had a maximum power of 77 hp at 7500 rpm, with a maximum torque of 75.5 Nm at 6000rpm. It had a five-speed transmission with a final drive of chain. The front suspension was 41mm Telehydraulic forks that were adjustable for preload and rebound, and the rear suspension was a Monocross single DeCarbon type gas-oil shock that was also adjustable for preload and rebound. Both front and rear brakes were disc with piston calipers, and the tires were 110/80-18 for the front and 150/70-17 for the rear. The Yamaha TDM 850 weighed 199kg dry and 219kg wet, with a fuel capacity of 18 litres. In terms of performance, the TDM 850 had an average fuel consumption of 15.5 km/lit and could brake from 60-0 in 12.8m. It also had a top speed of 209.1 km/h and could complete a standing 1/4 mile in 11.6 seconds.
Technical specifications:
Make Model: Yamaha TDM 850
| Year | 1991 – 92 |
|---|---|
| Engine | Four stroke, parallel twin cylinder, DOHC, 5 valves per cylinder |
| Capacity | 849 cc / 51.8 cu-in |
| Bore x Stroke | 89.5 x 67.5 mm |
| Cooling System | Liquid cooled |
| Compression Ratio | 9.2:1 |
| Induction | 2x Mikuni BDST88 carburetors |
| Ignition | Digital |
| Starting | Electric |
| Max Power | 77 hp / 56.1 kW @ 7500 rpm |
| Max Power Rear Tyre | 74. 9 hp / 55.8 kW @ 7500 rpm |
| Max Torque | 75.5 Nm / 55.6 lb-ft @ 6000 rpm |
| Transmission | 5 Speed |
| Final Drive | Chain |
| Front Suspension | 41mm Telehydraulic forks, adjustable for preload and rebound |
| Front Wheel Travel | 160 mm / 6.2 in |
| Rear Suspension | Monocross single DeCarbon type gas-oil shock adjustable for preload and rebound |
| Rear Wheel Travel | 140 mm / 5.5 in |
| Front Brakes | 2x 298mm discs 4 piston calipers |
| Rear Brakes | Single 245mm disc 2 piston caliper |
| Front Tyre | 110/80-18 |
| Rear Tyre | 150/70-17 |
| Dry Weight | 199 kg / 438.7 lbs |
| Wet Weight | 219 kg / 482.8 lbs |
| Fuel Capacity | 18 Litres / 4.7 US gal |
| Consumption Average | 15.5 km/lit |
| Braking 60 – 0 / 100 – 0 | 12.8 m / 37.9 m |
| Standing 1/4 Mile | 11.6 sec / 180.4 km/h |
| Top Speed | 209.1 km/h / 129.8 mph |
