Yamaha SuperJet

Yamaha SuperJet

A 1996 Yamaha SuperJet, the first year of the 701cc straight twin two-stroke engine with twin Mikuni carburetors
Manufacturer	Yamaha Motor Corporation
Also called	SuperJet, 701, Square nose (SN), Round nose (RN)
Production	1990 - present (2020)
Assembly	Engine: Kumamoto, Japan Final assembly: Japan
Class	Personal watercraft
Engine	Two stroke: 650cc I2 single carb - 50hp (SJ650D) 701cc I2 single carb - 63hp (SJ700S) 701cc I2 dual carb - 73hp (SJ700AU) Four stroke: 1049cc I3 fuel injected - 100hp (SJ1050W)
Bore / stroke	81 mm × 68 mm (3.19 in × 2.68 in) (SJ700AU), 82.0 mm × 66.0 mm (3.23 in × 2.60 in) (SJ1050W)
Power	73 hp (54 kW) @6,300 rpm (SJ700AU), 100 hp (75 kW) @7,300 rpm (SJ1050W)
Dimensions	L: 88.2 in (2,240 mm) (SJ700AU) W: 26.8 in (681 mm) H: 26.0 in (660 mm)
Weight	291 lb (132 kg) (SJ700AU), 375 lb (170 kg) (SJ1050W) (dry)
Fuel capacity	4.8 U.S. gallons (18 L), including 1.45 U.S. gallons (5.5 L) reserve. (SJ700AU),5.0 U.S. gallons (19 L), including 1.45 U.S. gallons (5.5 L) reserve. (SJ1050W)
Oil capacity	N/A, 50:1 fuel to oil pre-mix ratio TC-W3 oil , 3.10 U.S. gallons (11.7 L) (SJ1050W)
Fuel consumption	7.7 US gal/h (29 L/h) max (SJ700AU), 8.0 US gal/h (30 L/h) max (SJ1050W)

The SuperJet is a stand-up type personal watercraft (PWC) made by Yamaha Motor Corporation. Part of Yamaha's WaveRunner line of watercraft, it was introduced in 1990 and has become one of the most successful stand-up personal watercraft ever made.^[1] All SuperJets, including the engine, are hand-built in Japan. Credit for the design is given to Clayton Jacobson II.

Prior to the introduction of the new Kawasaki SX-R 1500 four stroke on October 6, 2016, it has been the only stand-up sold by a major manufacturer since the Kawasaki SX-R 800 was discontinued in 2011. The SX-R 800 was discontinued primarily due to the fact Kawasaki did not want to go through the hassle of trying to get around EPA regulations by marketing it as "closed course competition use only", instead opting to move on.

There are four engine generations spanning 1990-1993, 1994-1995, 1996-2020, and 2021-present, and four hull generations spanning 1990-1995, 1996-2007, 2008-2020, and 2021-present. 2019 marks the 30th year of production for the SuperJet.

The current model SuperJet is powered by a 1049cc inline three-cylinder, four-stroke engine.

All generations have an upper and lower hull constructed from SMC (sheet molded compound). SMC is a compression moldable composite material made of long strands of glass fibers suspended in a polyester resin.

The Yamaha FX-1 is the only other stand-up personal watercraft produced by Yamaha, and was produced in limited numbers from 1994-1995.

On August 12, 2020 Yamaha released the new 2021 SuperJet. This is the first complete redesign from the ground up since the introduction in 1990, and marks 30 years of SuperJet history. The hull is entirely new and it is now powered by Yamaha's 1,049cc three-cylinder four-stroke TR-1 marine engine.