Superjet
From Wikipedia, the free encyclopedia
Action Shot of Yamaha Superjet |
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| Common Name(s): | Superjet; Squarenose; Roundnose; 701 |
|---|---|
| Manufacturer: | Yamaha Motor |
| Engine Type: | Two Stroke |
| Years Into Production: | 1990-2007 |
| Horsepower: | 73 hp |
| Displacement: | 701cc |
| Type of Lubrication: | Premixed Oil & Gas |
| Mixing Ratio: | 50:1 |
| Spark Plug: | BR8HS for stock head BR8ES for ADA head |
| Length: | 88.2" |
| Width: | 26.8" |
| Height: | 26" |
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.
Contents |
[edit] History
[edit] Timeline
[edit] Superjet 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)
[edit] Superjet 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)
[edit] Superjet 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)
[edit] Superjet 2008- (SJXXXX)
- For more information about the Superjet SJXXXX, please see our article about that model
Body- round nose top deck, new Superjet bottom deck The 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)
[edit] 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.
[edit] Specifications
- 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)
[edit] After market hull and motor upgrades
- Factory "B" Limited.. Great all around power, light weight / low end punch, proven #1 pipe !! (great low end, great top end up to 7000 rpm) care is needed with the 3 head pipe bolts and making sure the coupler is clean using windex when installing.
- Factory "B" mod) Great all around power, light weight / low, proven #2 pipe !! (very close to limited pipe but moves the low end up 150 rpm and ads it on top) care is needed with the 3 head pipe bolts and making sure the coupler is clean using windex when installing.
- TNT "limited" Great all around pipe.. not as much low end as a limited factory but still very good.. hard to tell which is a limited or Mod chamber unless you have had a few, very easy to install/remove after some beating for clearance. I would call this my #3 choice on a limited super jet..
(Mod chamber is close but not as good)
- Factory type 4 / riva free ride) with a lot of time adjusting water injection points and amounts, can be a very good hitting pipe with better top end. Some people have trouble with mounts and couplers coming apart but with time takin installing clean parts and time with maintinace they stay together..
- Pro-Tec ("black") A great low buck pipe with good all around power but comes with a price of funky mounts that "all holes" only line up with the use of a pro-tec head, heavy in weight, been known to crack. But once again if the time is took to keep up on tighting mounts can be a great pipe. IF 2" is added to the chamber this pipe hits like bricks !!
- Pro-Tec Mach II good pipe adds a little on the bottom but the top goes to the moon ! great race pipe ! hard to install, lots of cooling lines, lots of adjustments, heavy, lots of maintenace.
- R&D "rev") once again a great race pipe and the name says it all. "Rev" Downside is a bitch to install, lots of cooling lines, lots of adjustments, lots of maintanace.
- Factory type 9.. once again a great race pipe. Hard to install, lots of maintenace.
- Coffmans 650/701 Sizzler.. Great pipe.. hits very well.. light weight, good mounts.. I have had great luck with this pipe all the way to big bores..
- Rive red (cast) another great pipe that will work great all the way to big bore.. Good low end, Great Mid, Good top..The mounts need attention, Its a little heavy but still a great pipe..
- Coffmans Lightining
