Yamaha TZ750

Last updated
Yamaha TZ750
Retromobile 2018 - Yamaha TZ 750 - 1977 - 001.jpg
Yamaha TZ750 (1977)
Manufacturer Yamaha Motor Company
Production1974–1979
Engine 747 cc (45.6 cu in) two-stroke inline-4
Bore / stroke 66.4 mm × 54 mm (2.61 in × 2.13 in)
Power 120 hp (89 kW) @ 10,500 rpm
Wheelbase 1,390 mm (55 in)
Weight152 kg (335 lb) (dry)
Related Yamaha TZ 350

The Yamaha TZ750 is a series production two-stroke race motorcycle built by Yamaha to compete in the Formula 750 class in the 1970s. Motorcyclist called it "the most notorious and successful roadracing motorcycle of the 1970s". [1] Another journal called it the dominant motorcycle of the era, noting its nine consecutive Daytona 200 wins, starting in 1974. [2]

Contents

Another triumph of note was when Joey Dunlop rode to victory in the 1980 Classic TT during the process of which he upped the lap record on the Snaefell Mountain Course to an average speed of 115.22 mph (185.43 km/h). [3] This is also the fastest recorded lap of the Mountain Course by a Yamaha 750cc two-stroke machine.

It was rated by journalist Kevin Cameron as one of the five most influential motorcycle designs: its monoshock suspension, high-strength frame and wide tires were necessary to handle the high engine output, and became standard for sportbikes. [4]

Twin TZ750 engines powered the Silver Bird motorcycle land-speed record setting streamliner motorcycle, the first to break 300 miles per hour (480 km/h).

Specifications

TZ 750 ATZ 750 BTZ 750 CTZ 750 DTZ 750 ETZ 750 F
Year197419751976197719781979
Displacement694 cm3747 cm3747 cm3747 cm3747 cm3747 cm3
Bore/stroke64 × 54 mm66,4 × 54 mm66,4 × 54 mm66,4 × 54 mm66,4 × 54 mm66,4 × 54 mm
Power90 PS (89 hp)
@ 10,500 RPM
90 PS (89 hp)
@ 10,500 RPM
90 PS (89 hp)
@ 10,500 RPM
120 PS (120 hp)
@ 10,500 RPM
120 PS (120 hp)
@ 11,000 RPM
120 PS (120 hp)
@ 11,000 RPM
Wheelbase1407 mm1407 mm1407 mm1390 mm1390 mm1390 mm
Steering angle (grad)
636363646464
Trail in mm
979797
Dry weight in kg157157157152152152
Production (units)21346403016276

[5]

Museum examples

A 1974 example is displayed in the Communication Plaza at the corporate headquarters of the Yamaha Motor Company in Iwata, Shizuoka, Japan. [6] Another 1974 TZ750A is at the Barber Vintage Motorsports Museum in Alabama. [7]

See also

Related Research Articles

<span class="mw-page-title-main">Isle of Man TT</span> Annual motorcycle race held on the Isle of Man

The Isle of Man TT or Tourist Trophy races are an annual motorcycle racing event run on the Isle of Man in May and June of most years since its inaugural race in 1907. The event begins on the UK Spring Bank Holiday at the end of May and runs for thirteen days. It is often called one of the most dangerous racing events in the world as many competitors have died.

<span class="mw-page-title-main">Barry Sheene</span> British motorcycle racer and racing driver (1950-2003)

Barry Steven Frank Sheene was a British professional motorcycle racer and television sports presenter. He competed in Grand Prix motorcycle racing between 1971 and 1984, most prominently as a member of the Suzuki factory racing team where he won two consecutive FIM World Championships in 1976 and 1977. Sheene remains the last British competitor to win the premier class of FIM road racing competitions.

<span class="mw-page-title-main">Mike Hailwood</span> British racing driver and motorcycle road racer (1940–1981)

Stanley Michael Bailey Hailwood was a British racing driver and motorcycle road racer, who competed in Grand Prix motorcycle racing from 1958 to 1967, and Formula One between 1963 and 1974. Nicknamed "The Bike", Hailwood was a nine-time Grand Prix motorcycle World Champion, with four titles in the premier 500cc class with MV Agusta, and won 76 motorcycle Grands Prix across 10 seasons.

<span class="mw-page-title-main">Giacomo Agostini</span> Italian motorcycle racer (born 1942)

Giacomo Agostini is an Italian former professional motorcycle road racer and racing team manager. He competed in the FIM Grand Prix motorcycle racing world championships from 1963 to 1977, most prominently as a member of the MV Agusta factory racing team. Nicknamed Ago, he amassed 122 Grand Prix wins and 15 World Championship titles. Of these, 68 wins and 8 titles came in the 500 cc class, the rest in the 350 cc class. For these achievements obtained over the course of a career spanning 17 years, the AMA described him as "...perhaps the greatest Grand Prix rider of all time". In 2000, Agostini was inducted into the MotoGP Hall of Fame as a MotoGP Legend, while in 2010, he was named an FIM Legend for his motorcycling achievements.

<span class="mw-page-title-main">Kenny Roberts</span> American motorcycle racer

Kenneth Leroy Roberts is an American former professional motorcycle racer and racing team owner. In 1978, he became the first American to win a Grand Prix motorcycle racing world championship. He was also a two-time winner of the A.M.A. Grand National Championship. Roberts is one of only four riders in American Motorcyclist Association (AMA) racing history to win the AMA Grand Slam, representing Grand National wins at a mile, half-mile, short-track, TT Steeplechase and road race events.

<span class="mw-page-title-main">Pat Hennen</span> American motorcycle racer (1953–2024)

Pat Hennen was an American professional motorcycle racer. He competed in AMA dirt track and road racing competitions from 1971 to 1975 and in the Grand Prix motorcycle racing world championships from 1976 to 1978.

<span class="mw-page-title-main">Phil Read</span> English motorcycle racer (1939–2022)

Phillip William Read, was an English professional motorcycle racer. He competed in Grand Prix motorcycle racing from 1961 to 1976. Read is notable for being the first competitor to win world championships in the 125 cc, 250 cc and 500 cc classes. Although he was often overshadowed by his contemporary, Mike Hailwood, he won seven FIM Grand Prix road racing world championships.

<span class="mw-page-title-main">Motorcycle racing</span> Racing sport using motorcycles

The motorcycle sport of racing includes motorcycle road racing and off-road racing, both either on circuits or open courses, and track racing. Other categories include hill climbs, drag racing and land speed record trials.

<span class="mw-page-title-main">Bill Ivy</span> British motorcycle racer

William David Ivy was an English professional Grand Prix motorcycle racer from Maidstone, Kent. He died during practice for a race in East Germany.

<span class="mw-page-title-main">Mick Grant</span> British motorcycle racer

Mick Grant is an English former professional motorcycle road racer and TT rider. A works-supported rider for Norton, Kawasaki, Honda and Suzuki, he is a seven-time winner of the Isle of Man TT motorcycle race on various makes, including 'Slippery Sam', a three-cylinder Triumph Trident. The son of a coal miner, the soft-spoken, down-to-earth Yorkshireman from Wakefield, was a sharp contrast to the brash, playboy image presented by Londoner Barry Sheene during the 1970s.

Yvon Duhamel was a French Canadian professional motorcycle and snowmobile racer. A six-time winner of the White Trophy, the highest award in Canadian motorcycle racing, he was one of the most accomplished motorcycle racers in Canadian motorsports history. His motorcycle racing career spanned the transition from the 60 horsepower four-stroke motorcycles of the 1960s, to the 100 horsepower two-stroke motorcycles of the 1970s. Duhamel was a versatile rider competing in numerous motorcycle racing disciplines including; trials, motocross, ice racing, drag racing, flat track racing and most prominently in road racing as a member of the Kawasaki factory racing team.

Gregory John "Gregg" Hansford was an Australian professional motorcycle and touring car racer. He competed in the FIM Grand Prix motorcycle racing world championships from 1978 to 1981 and in Australian touring car championships from 1982 to 1994. Hansford was a two-time vice-champion in the 250cc road racing world championships. With 10 Grand Prix victories to his credit, he is ranked fourth for the most Grand Prix wins by an Australian behind Mick Doohan, Casey Stoner (38) and Wayne Gardner (18).

Charles Mortimer is an English former professional motorcycle short-circuit road racer and race-school instructor. He competed in the Grand Prix motorcycle road racing world championships from 1969 to 1979. He remains the only competitor to have won FIM Grand Prix races in the 125, 250, 350, 500 and 750 world championship classes.

Steve Linsdell is a British former professional motorcycle road racer. He specialized in a branch of road racing known as traditional road racing held on street circuits such as the North West 200 and the Ulster Grand Prix.

<span class="mw-page-title-main">Bruce Anstey</span> Motorcycle racer

Bruce Anstey is a professional motorcycle road racer. He is a former lap record holder on the world-famous Snaefell Mountain Course with a time of 17 minutes 6.682 seconds, at an average speed of 132.298 mph (212.913 km/h) set during the 2014 Superbike TT Race. Anstey was signed to race for the Padgett's Honda Racing Team having previously ridden for TAS Suzuki Racing, Valmoto Triumph and DTR Yamaha. For thirteen consecutive seasons, from 2002 - 2015, Bruce Anstey managed to secure a top three finish at the world's three most prestigious road races; the North West 200, the Isle of Man TT and the Ulster Grand Prix.

<span class="mw-page-title-main">Neil Robinson (motorcyclist)</span> Irish motorcycle racer

Neil Robinson was a motorcycle circuit and road racer from Ballymena, County Antrim, Northern Ireland. Robinson died aged 24 during a practice session at Oliver's Mount racing circuit, Scarborough.

<span class="mw-page-title-main">2012 Manx Grand Prix</span>

2012 Manx Grand Prix Festival and Races were held between Saturday 18 August and Friday 31 August 2012 on the 37.73-mile Snaefell Mountain Course.

<span class="mw-page-title-main">Silver Bird (streamliner)</span> Type of motorcycle

Silver Bird was a motorcycle land-speed record setting streamliner motorcycle. It was powered by two motors delivering 240 horsepower (180 kW). It was the first motorcycle to set a speed record over 300 miles per hour (480 km/h), when ridden by Don Vesco at the Bonneville Speedway in 1975.

David William Potter was an English motorcycle racer who won the British Superbike Championship twice. Potter crashed during a race at Oulton Park on 31 August 1981 and suffered head injuries from which he died in hospital 17 days later.

<span class="mw-page-title-main">BSA/Triumph racing triples</span> Type of motorcycle

The BSA/Triumph racing triples were three cylinder 750 cc racing motorcycles manufactured by BSA/Triumph and raced with factory support from 1969 to 1974. There were road racing, production racing, endurance racing and flat track variants. The machines were based on the road-going BSA Rocket 3/Triumph Trident.

References

  1. Mitch Boehm (February 23, 2009), "Yamaha TZ750: Meeting The Monster", Motorcyclist
  2. Kel Carruthers. "Yamaha's TZ750: Where Legends Began". superbikeplanet.com. Archived from the original on 21 December 2010.
  3. "TT 1980 Classic TT Race Results - iomtt.com: The World's #1 TT Website". www.iomtt.com. Retrieved 21 December 2022.
  4. Kevin Cameron (January 19, 2012), "Yamaha TZ750 - The FIVE GREATEST", Cycle World
  5. MacKellar 1995, p. 188.
  6. Communication Plaza Collection items - 1974 TZ750, Yamaha Corporation
  7. Phil Aynsley (March 31, 2017), "Barber Vintage Motorsports Museum", mcnews.com.au

Sources

Further reading