1991 Yamaha TDM 850 specifications

Available technical data for this model and year. Specifications can vary by market and version.

Technical specifications

Displacement	849.0 ccm (51.81 cubic inches)
Engine type	Twin, four-stroke
Power	78.0 HP (56.9 kW )) @ 7500 RPM
Compression	9.2:1
Bore x stroke	89.5 x 67.5 mm (3.5 x 2.7 inches)
Valves per cylinder	5
Fuel control	Double Overhead Cams/Twin Cam (DOHC)
Cooling system	Liquid
Gearbox	5-speed
Transmission type	Chain (final drive)
Front brakes	Dual disc
Rear brakes	Single disc
Front tyre	110/80-18
Rear tyre	150/70-17
Weight incl. oil, gas, etc	230.0 kg (507.1 pounds)
Fuel capacity	18.00 litres (4.76 US gallons)
Top speed	207.0 km/h (128.6 mph)

Source: Bikez: TDM 850, 1991. Retrieved 2026-09-19. Match confidence: exact.

Years listed are the entries held in this archive, rather than a complete production history.