Yamaha TZ 350

The Yamaha TZ 350 was a racing motorcycle produced by the Yamaha Motor Company from 1973 to 1981 for competition in the Grand Prix motorcycle racing series. The motorcycle was powered by a 350 cc two stroke engine.ACU

Yamaha TZ 350

Manufacturer	Yamaha
Production	1973 (TZ 350A) till 1980 (TZ 350 G)
Class	Grand Prix motorcycle racing
Engine	347 cc (21.2 cu in) air-cooled, two-stroke parallel twin
Bore / stroke	64 mm × 54 mm (2.5 in × 2.1 in)
Top speed	over 289 km/h (180 mph)
Power	60 bhp (45 kW) @ 9,500 rpm (A) to 72 bhp (54 kW) @ 11,000 rpm (H)
Torque	35 N⋅m (26 lbf⋅ft) @ 9,440 rpm
Transmission	6-speed
Suspension	Rear: Twin Shock (A&B); Mono-Shock (C-H)
Brakes	Front: 2 x Twin L-Shoe (A&B); Disc (since Model C) Rear:1 x Single L-Shoe (A&B) ; Disc (since Model C)
Tires	Front: 2.75" x 18" (A&B); 3.0" x 18" (Since C) Rear: 3.0" x 18" (A-E);3.5" x 18" (F-H)
Rake, trail	27.5°, 4.3 inches (110 mm) (Model A-E)
Wheelbase	1,331 mm (52.4 in) (diff per model)
Dimensions	L: 1,946 mm (76.6 in) W: 510 mm (20 in) (between 510 and 635)
Weight	115 kg (dry)
Fuel capacity	23 L (5.1 imp gal; 6.1 US gal)

Model history

Production of the motorcycle started in 1973 with Model A (60 bhp @9,500rpm) and ended 1981 with Model H (72 bhp @ 11,000rpm) when the GP series came to an end.^[1]

Helmut Dähne on a Yamaha TZ 350 (1976)

Yamaha TZ 350 (1977)

Production Racer were series manufactured racing bikes. Two Yamaha TZ 350 models are part of the motorcycle collection of the Technikmuseum Speyer.^[2]

Yamaha often leveraged the marketing of their RD and RZ series road motorcycles by referencing the TZ series. See also: RD250, RD350, RD400, RZ250, RZ350. The TZ motors provided the inspiration and engineering basis of Yamaha's contemporaneous road going two strokes.

See also

• Honda RC174
• Kawasaki KR350
• MV Agusta 350 Six