Yamaha Superjet

The Superjet is a personal watercraft (PWC) made by Yamaha Motor Corporation. The "Superjet" is a "stand-up" PWC. Credit for its design is given to Clayton Jacobsen II. Part of their WaveRunner line of watercraft, it was introduced in 1990 and has become one of the most popular personal watercraft in history.

History

Timeline

uperjet 1990-1993 (SJ650R)

:"For more information about the Superjet SJ650R, please see our article about that model"

Body - Squarenose top deck, standard Superjet bottom

Motor Common name 650 (6m6 cases, 6m6 cylinder) Displacement 633 cc HP 50 Premix 50:1 Single carb (Mikuni Super BN44)

uperjet 1994-1995 (SJ700S)

:"For more information about the Superjet SJ700S, please see our article about that model"

Body - Squarenose top deck, standard Superjet bottom

Motor Common name 701 Displacement 701 cc (61X cylinder, 61x cases) HP 63 Premix 50:1 Single carb (Mikuni Super BN44)

uperjet 1996-2007 (SJ700A)

Body - Roundnose top deck, standard Superjet bottom

Motor Common name 701 Displacement 701 cc (61X cylinder, 62T cases) HP 73 Premix 50:1 Dual carb (Mikuni 38)

uperjet 2008- (SJXXXX)

:"For more information about the Superjet SJXXXX, please see our article about that model"

Body - Roundnose top deck, new Superjet bottom deckThe new bottom hull has incorporated side sponsons (similar to adding "blowsion tubbies") into the hull and the rear of the hull is slightly narrower with deeper strakes. The Pump, intake grate and ride plate are all setback 50mm compared to the past Superjets. The pole on the 2008 SJ is also about 2 inches shorter than previous round nose superjets.

Motor Common name 701 Displacement 701 cc (61X cylinder, 62T cases) HP 73 Premix 50:1 Dual carb (Mikuni 38)

Current Superjet

The current Superjet (still in production by Yamaha Motor) has been visually the same since 1996. It's great adaptation to different modifications, and the availability of different aftermarket parts, makes it a well-liked choice for the recreational stand-up rider. The 2008 model will be the first year of a new bottom deck, unchanged in the history of the superjet. This watercraft does not meet California or New York emissions standards.

pecifications

*Rated Horsepower 74 hp @ 6,300 rpm
*Engine Type 2-Cylinder, 2-Stroke
*Bore/Stroke 81 mm x 68 mm
*Displacement 701 cc
*Fuel Regular Unleaded
*Type of Intake Reed Valve
*Type of Scavenging Loop-Charged
*Type of Exhaust Wet
*Type of Lubrication Pre-Mixed Oil and Gas
*Mixing Ratio 50:1
*Cooling Water
*Starting Electric
*Ignition CDI
*Compression Ratio 7.2:1
*Carburetor/Injection (2) Mikuni Super BN 38
*Spark Advance 6°
*Ignition Timing 15° BTDC - 21° BTDC
*Spark Plug BR7HS
*Pump 144 mm Axial Flow Single Stage
*Transmission Direct Drive From Engine
*Impeller 3-Blade, Aluminum (13/16 pitch)
*Length 88.2” (2.25 m)
*Width 26.8” (.68 m)
*Height 26” (.66 m)
*Dry Weight 291 lb (132 kg)
*Fuel Capacity 4.8 gal (18L)
*Reserve Fuel Capacity 1.45 gal (5.5L)
*Oil Capacity Spec Not Available
*Vehicle Capacity 1 person
*Hull Material SMC (Sheet Moulded Compound)
*Warranty 1 year limited warranty
*Color Jet Black (with yellow graphics for 2007)

ee also

*Pump-jet
*Wave Blaster
* [http://en.wikipedia.org/wiki/Wikipedia:WikiProject_PWC#External_links The Wikipedia PWC Project page]

External links

* [http://www.pwia.org/ Personal Watercraft Industry Association]
* [http://www.awahq.com/ American Watercraft Association]
* [http://www.uscgboating.org/ U.S. Coast Guard Boating Safety]
* [http://www.x-h2o.com/ X-h2o stand-up/sport related Forum]
* [http://greenhulk.net/forums/ Green Hulk Performance and speed related sit-down Forum]
* [http://pwctoday.com/ PWCToday forum discusses a huge variety of PWC's]