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1994-1995 Yamaha SuperJet 701 SN Review and Specs [Video]

1994-1995 Yamaha SuperJet 701 SN Review and Specs [Video]

The 1994-1995 Yamaha SuperJet 701 “SN” was the successor of the proven 1990-1993 SuperJet 650. While the new model inherited its “square nose” hull from the 650, it housed a more powerful single-carb 701 engine rated at 62.5hp. The closest relative of this ski was the smaller and faster FX-1.

If you want to find out more about this 2-stroke stand-up PWC, this post is for you.

We at JetDrift have compiled all you need to know into this Yamaha SuperJet review!

Square Nose SuperJet 701 Review

The SuperJet Family

Yamaha introduced its legendary stand-up PWC in 1990 under the model name SuperJet (a.k.a. SuperJet 650).

The “square nose” hull of this ski was carried over to the SuperJet 701, which housed a single-carb 701 engine rated at 62.5hp.

This model was upgraded in 1996 with a revamped “round-nose” hull and the twin-carb 701 engine.

The hull of this variant was revamped in 2008 and remained in production through 2020 when it was replaced by the all-new 4-stroke model.

In a nutshell, the list of all the Yamaha SuperJets ever built is as follows:

Let’s talk about the square-nose SuperJet 701 in detail!

Yamaha SuperJet 701 SN Hull and Top Deck

The first SuperJet platform debuted on the SuperJet 650 in 1990. This platform was carried over to the 1995-1996 successor without any important changes.

Due to its square bow design, this shell was commonly known as the square-nose SuperJet hull.

Because of this, the 1995-1996 model was often referred to as square-nose Superjet 701, SJ 701 “SN,” or just the second-generation SuperJet.

In terms of dimensions, this ski measured 88.2 inches in length, 26.8 inches in width, and 26.0 inches in height.

Its smaller brother was the lesser known FX-1, which was 4.3 inches shorter and 2 inches narrower.

The dry weight of this ski was only 267 pounds, 24 pounds lighter than the SuperJet 701.

Thanks to their small dimensions and light weight, these skis were extremely nimble and offered a ton of fun for experienced riders. In return, reboarding from deep water was difficult, especially for beginners.

They also offered a great performance since they shared the same single-carb 701 marine engine.

Let’s talk about this power source in detail!

Yamaha SuperJet 701 SN Engine

Unlike the hull, the engine of the SuperJet was completely revamped for the 1996 season.

As the name suggests, the SuperJet 701 returned with a big-bore (701cc) version of the proven 650 (633cc) power mill.

The new engine was a 2-stroke, 701cc, reed-valve, single-carb, twin-cylinder 701 Yamaha marine engine. While the predecessor 650 was rated at 42hp, its bored successor delivered 62.5hp at 6250 RPM.

This engine lacked an oil injection system but featured many advanced technologies, including:

  • CDI ignition
  • Reed valve intake system
  • Electric start
  • Single Mikuni BN44 carb
  • Open-loop cooling system
  • NGK BR8HS spark plugs
The ‘94-‘95 SuperJet 701 engine featured a single Mikuni BN44 carburetor, which was upgraded with a twin-carb setup in the ’96 model.

Yamaha SuperJet 701 SN Features

Unlike its sit-down counterparts, the square-nose Yamaha SuperJet 701 came standard with just a few basic features, including:

  • 4.8-gallon fuel tank
  • Riding tray with deck mats
  • Steering pole cover
  • Fire extinguisher container
  • Bow and stern rope holes
  • Storage pouch
  • Engine cut-off switch
  • Engine shut-off cord (safety lanyard)
  • Cooling water pilot outlet
  • Drain plugs
  • Flushing hose connector
  • Fuel cock knob

Yamaha SuperJet 701 SN Top Speed and Performance

Thanks to its lightweight body and powerful 2-stroke twin engine, the claimed top speed of the square-nose SuperJet 701 was 43.5 mph. At this speed, the ski burned 6.9 gph, so its 4.8-gallon fuel tank offered a limited riding time of 42 minutes.

It was a very versatile ski that could be used for various purposes including buoy racing, pleasure riding, or doing freestyle PWC tricks.

Sure, handling this machine required body strength and athletic skills, so it was not for everyone!

Yamaha SuperJet 701 SN Specs Charts

For your convenience, we’ve listed the key specs of the 1995 Yamaha SuperJet 701 in these charts.

Yamaha SuperJet 701 SN Engine Specs

1994-1995 Yamaha SuperJet 701Engine Specs
Number of cylinders2
Displacement701 cm³ (42.78 cu in.)
Bore and Stroke81 × 68 mm (3.19 × 2.68 in)
Compression Ratio7.2:1
Intake SystemReed Valve
Carburetor TypeFloatless Type
Number of Carburetor1
Carburetor Starting SystemChoke
Scavenging SystemLoop Charged
Lubrication SystemPremix
Cooling SystemWater-Cooled
Starting SystemElectric starter
Ignition SystemC.D.I.
Ignition Timing15 BTDC~21 BTDC
Spark Plugs TypeBR8HS/BR8HS
Battery Capacity12 V 19 Ah
Lighting Coil2~4/5,500 A/rpm

Yamaha SuperJet 701 SN Drive System

1994-1995 Yamaha SuperJet 701Drive System
Propulsion SystemJet pump
Jet Pump TypeAxial flow, single stage
Impeller RotationCounterclockwise
TransmissionDirect drive from engine
Jet thrust nozzle angle18.5~24.5°

Yamaha SuperJet 701 SN Performance

1994-1995 Yamaha SuperJet 701Performance
Maximum Speed43.5 mph (70 km/h)
Maximum Output62.5 HP (46.6 kW) @ 6,250 RPM
Maximum Fuel Consumption6.9 US gal/h (26 L/h)
Cruising Range (at full throttle)0.7 hours
Static Thrust496 lb (225 kg)

Yamaha SuperJet 701 SN Dimensions

1994-1995 Yamaha SuperJet 701Dimensions
Overall Length88.2 in (2,240 mm)
Overall Width26.8 in (680 mm)
Overall Height26.0 in (660 mm)
Dry Weight291 lb (132 kg)
Maximum people onboard1

Yamaha SuperJet 701 SN Fuel and Oil

1994-1995 Yamaha SuperJet 701Fuel and Oil
Recommended fuelRegular Gasoline
Recommended engine oilTwo-cycle outboard motor oil
Fuel and oil mixing ratio50:1
Fuel tank capacity4.8 US gal (18 L)
Reverse capacity1.45 US gal (5.5 L)
These charts are for informational purposes only! For exact specifications, please refer to the factory manual.


As a takeaway, we’ve answered the most common questions about the square-nose Yamaha SuperJet 701:

What is a “Square Nose” Yamaha SuperJet?

The square-nose SuperJet 701 (SJ 701 “SN”) was the second-generation Yamaha SuperJet featuring the single-carb 701 engine.

When did the Yamaha SuperJet 701 SN Come Out?

The Yamaha SuperJet 701 SN debuted in 1994.

What Years Did Yamaha Make the SuperJet 701 SN?

Yamaha marketed the SuperJet 701 SN from 1994 through 1995.

What Size was a Yamaha SuperJet 701 SN?

The Yamaha SuperJet 701 SN measured 88.2 inches in length, 26.8 inches in width, and 26.0 inches in height.

How Much Did a Yamaha SuperJet 701 SN Weigh?

The dry weight of the Yamaha SuperJet 701 SN was 291 pounds.

What Kind of Engine was in the Yamaha SuperJet 701 SN?

The Yamaha SuperJet 701 SN had a 2-stroke, 701cc, twin-cylinder, single-carb 701 Yamaha marine engine.

Was the Yamaha SuperJet 701 SN a 2-Stroke?

Yes, the Yamaha SuperJet 701 SN was powered by a 2-stroke engine.

How Much Horsepower Did a Yamaha SuperJet 701 SN Have?

The Yamaha SuperJet 701 SN delivered 62.5hp at 6,250 RPM.

How Much Oil Did a Yamaha SuperJet 701 SN Hold?

The Yamaha SuperJet 701 SN ran on premix.

How Much Fuel Did a Yamaha SuperJet 701 SN Hold?

The Yamaha SuperJet 701 SN was equipped with a 4.8-gallon fuel tank.

How Much Gas Did a Yamaha SuperJet 701 SN Use?

The fuel economy of the Yamaha SuperJet 701 SN was 6.9 gph at full throttle.

How Fast Did a Yamaha SuperJet 701 SN Go?

The claimed top speed of a Yamaha SuperJet 701 SN was about 43.5 mph.

Did the Yamaha SuperJet 701 SN Have a Trim?              

The Yamaha SuperJet 701 SN was designed without a manual trim system.

How Much Does a Yamaha SuperJet 701 SN Cost?

The asking price of a used Yamaha SuperJet 701 varies between $3,000 and $7,000 depending on the year and its condition.