Yamaha DT 175 (1979)

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The Yamaha DT 175 is a motorcycle produced in 1979, powered by a two-stroke, single cylinder, reed valve engine with a capacity of 171 cc. It has a Mikuni VM24SS 24mm slide type carburettor, CDI ignition and kick start. The bike has a wet, multiplate-type clutch, five-speed transmission, and chain final drive. The frame is a welded, tubular, double cradle with a single down tube. The front suspension is telescopic and oil damped while the rear suspension is dual shocks. The front and rear brakes are drums. The bike has a castor angle of 60 degrees, a length of 2080 mm, a height of 1120 mm, a ground clearance of 265 mm, and a seat height of 845 mm. The dry weight of the bike is 99 kg, and the fuel capacity is 7 liters. The max power output is 16.5 hp @ 7000 rpm, with a maximum torque of 8.8 Nm @ 6000 rpm. It has a 60-degree castor angle and a wheelbase of 1350 mm. The primary reduction ratio is 3.23:1, and the final reduction ratio is 2.37:1. The bike has a gearbox and wheel sprocket of 15 and 49 teeth, respectively. The front and rear tire sizes are 2.75-21 and 3.50-18, respectively.

Technical specifications:

Make Model: Yamaha DT 175

Year: 1979


Engine: Two stroke, single cylinder, reed valve
Capacity: 171 cc / 10.43 cu-in
Bore x Stroke: 66 x 50 mm
Cooling System: Air cooled
Compression Ratio: 6.8;1
Induction: Mikuni VM24SS 24mm slide type carburettor
Ignition: CDI, magneto type
Starting: Kick
Battery: 6V, 4Ah.
Max Power: 16.5 hp / 12.3 kW @ 7000 rpm
Max Torque: 8.8 Nm / 12 lb- ft @ 6000rpm.
Clutch: Wet, multiplate type.
Transmission: 5 Speed
Final Drive: Chain, DID428SM. 117 links.
Primary Reduction Ratio: 3.23:1.

Final Reduction Ratio: 2.37:1.
Gear Ratios: 1st 33.55, 2nd 20.38, 3rd 14.42, 4th 11.50, 5th 10.09
Gearbox Sprocket: 15 teeth.
Wheel Sprocket: 49 teeth.
Frame: Welded, tubular, double cradle with single downtube.
Front Suspension: Telescopic, oil damped.
Front Fork Oil: 146cc (4.9fl. oz.) per leg.
Rear Suspension: Dual shocks
Front Brakes: Drum
Rear Brakes: Drum
Front Tyre: 2.75 -21
Rear Tyre: 3.50 -18
Castor Angle: 60 degrees
Dimensions: Length 2080 mm / 81.9 in Height 1120 mm / 44.1 in
Wheelbase:: 1350 mm / 53.1in.
Ground Clearance: 265 mm / 10.4 in
Seat height: 845 mm / 33.27 in
Dry Weight: 99 kg / 2181 lbs
Fuel Capacity: 7 Litres / 1.5gal

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