Yamaha DT175

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Yamaha DT175
Also called DT175MX, DT 175 MX, DT 175
Production 1973 - 2006
Class Enduro
Predecessor Yamaha CT3
single cylinder, two-stroke
Bore / Stroke 66.0mm x 50.0mm
Compression ratio 6.8:1
Top Speed 65 mph (105 km/h)
Horsepower 17.17 HP (12.8 KW) @ 7000RPM
Torque 1.48 ft/lbs (2.0 Nm) @ 5500RPM
Ignition cdi
Spark Plug NGK B8ES '74-79
NGK B9ES '80-81 [1]
Battery YUASA 6N4B-2A-3 '74-76
YUASA 6N6-3B-1 78-81[1]
Transmission Gear box: 6-speed
Clutch: Wet multi-disc
Final Drive Chain: 428x
Suspension Front: telescopic fork
Rear: monocross
Brakes Front: single disc
Rear: single disc
Front Tire 3.00-19 '74-75
2.75-21 '76-81 [1]
Rear Tire 3.50-18 '74-81 [1]
Wheelbase 52.95 inches (1345 mm)
Length 83.07 inches (2110 mm)
Width 33.66 inches (855 mm)
Height 45.28 inches (1150 mm)
Seat Height 49.45 inches (1256 mm)
Weight 220.46 pounds (100.0 Kg) (dry), 105.0 kg (wet)
Recommended Oil Yamalube 10w-40
Fuel Capacity 2.51 Gallon (9.50 Liters)
Related Yamaha CT1/CT2/DT175
Competition Honda SL175
Suzuki TS185
Kawasaki F7/KE175
Manuals Service Manual

The Yamaha DT175 was a 175cc single cylinder, two-stroke dual-purpose motorcycle manufactured by Yamaha from 1974 through 1981. It could reach a top speed of 65 mph (105 km/h). Max torque was 1.48 ft/lbs (2.0 Nm) @ 5500 RPM. Claimed horsepower was 17.17 HP (12.8 KW) @ 7000 RPM. The Yamaha DT 175 was the second last in a long line of enduro motorcycles that can be traced back to the back to the CT-1.


The DT175 had a raised rear and front fenders, raised exhaust, handlebars with cross members, universal tires, and adequate ground clearance for an off-road-enduro motorcycle or trail motorcycle.


The engine was a air cooled single cylinder, two-stroke. A 66.0mm bore x 50.0mm stroke result in a displacement of just 171.0 cubic centimeters. Fuel was supplied via a membrane.


The bike has a 6-speed transmission. Power was moderated via the Wet multi-disc.


1974 Yamaha DT175 in Blue

It came with a 2.75-21 front tire and a 4.10-18 rear tire. Stopping was achieved via single disc in the front and a single disc in the rear. The front suspension was a telescopic fork while the rear was equipped with a monocross. The DT175 was fitted with a 2.51 Gallon (9.50 Liters) fuel tank. The bike weighed just 220.46 pounds (100.0 Kg). The wheelbase was 52.95 inches (1345 mm) long.

1974 DT175A[edit]

  • Starting Engine#: 443-000101

1975 DT175B[edit]

  • Starting Engine#: 443-100101

1976 DT175C[edit]

  • Starting Engine#: 559-000101

1978 DT175E[edit]

  • Starting Engine#: 2A7-000101

1979 DT175F[edit]

  • Starting Engine#: 2N5-000101

1980 DT175G[edit]

  • Starting Engine#: 3J1-000101


In Media[edit]


  1. 1.0 1.1 1.2 1.3 2019 Western Power Sports Catalog. Western Power Sports. 2019.