Yamaha TD2

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1969 Yamaha TD2.jpg
Class250 cc
EngineDS6 2 stroke , air cooled , 2 parallel cylinders
Top speed144 mph (232 km/h)
Power44 hp (33 kW) @ 10000 rpm
Torque22.9 lb·ft (31 N·m) @ 9500 rpm
SuspensionDual Shock
BrakesBreaks: Front. Internal expanding duel double leading shoe. Rear. Internal expanding single leading shoe. Break operations , both front and rear , cable actuated
Tires: Front 2.75 x 18 Rear 3.00 x 18
Rake, Trail27.5 Trail 90 mm
Wheelbase1,315 mm
Weight105 kg (231 lb)
Fuel capacity6 Gallons

Yamaha TD2 is a road racing motorcycle made by Yamaha between 1969 and 1970.

Great Britain’s Rodney Gould won the 1970 250 cc World Championship on a TD2 , with Australian, Kel Carruthers coming in second, also riding a TD2. Gould won six races in the 1970 Grand Prix Motorcycle season, clinching the title at the Nations Grand Prix , Monza.[1]

Yamaha Factory racing had withdrawn from the championship over revised competition rules in 1969. “Privateer” racing with many dealer backed racing efforts competed against Factory teams for the World Championship.[2]

Kel Carruthers won the Isle of Man TT Lightweight 250 cc class in 1970 , with a time of 2:21.19 (96.13 mph )[3]

The cost of a TD2 in 1970 was $1,800


Parallel Cylinders
  • Bore Stroke: ( 56 mm x 50 mm )
  • Compression Ratio: 7.6 : 1
  • Ignition: Magnito system
  • Clutch: Wet , Multi disk
  • Carburetors: Mikuni VM30SC
  • top speed:232 Kmh
  • Wheels: Spoke
  • Engine model code: DS6-

An oil reservoir was positioned in the tail piece. The oil line was fed to crank case, powered by a positive placement pump.

TD2 no fairing
Kel Carruthers, Mallory Park 1970


  1. List of Grand Prix motorcycle racing World Champions
  2. Collin Mackellar Yamaha All Factory And Production Road-Racing Two Strokes from 1955 to 1993
  3. 1970 Grand Prix motorcycle racing season