1979 Yamaha DT 175 MX specifications

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

Technical specifications

Displacement	171.0 ccm (10.43 cubic inches)
Engine type	Single cylinder, two-stroke
Engine details	Reed valve.
Power	15.0 HP (10.9 kW )) @ 7500 RPM
Torque	8.8 Nm (0.9 kgf-m or 6.5 ft.lbs) @ 6000 RPM
Compression	6.8:1
Bore x stroke	66.0 x 50.0 mm (2.6 x 2.0 inches)
Fuel system	Carburettor
Fuel control	Membrane
Ignition	CDI, magneto type
Cooling system	Air
Gearbox	6-speed
Transmission type	Chain (final drive)
Clutch	Wet, multiplate type
Frame type	Welded, tubular, double cradle with single downtube
Front suspension	Telescopic, oil damped
Rear suspension	Dual shocks
Front brakes	Expanding brake (drum brake)
Rear brakes	Expanding brake
Front tyre	2.75-21
Rear tyre	3.50-18
Dry weight	99.0 kg (218.3 pounds)
Weight incl. oil, gas, etc	111.0 kg (244.7 pounds)
Seat height	845 mm (33.3 inches) If adjustable, lowest setting.
Overall length	2080 mm (81.9 inches)
Ground clearance	265 mm (10.4 inches)
Wheelbase	1350 mm (53.1 inches)
Fuel capacity	7.00 litres (1.85 US gallons)
Top speed	115.0 km/h (71.5 mph)

Source: Bikez: DT 175 MX, 1979. Retrieved 2026-09-19. Match confidence: exact.

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