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2002-2004 Yamaha FX140 Specs and Review [Video]

2002-2004 Yamaha FX140 Specs and Review [Video]

When the Yamaha FX140 hit the market in 2001, it completely amazed the PWC market. It was the world’s first 4-stroke PWC with a super clean engine and outstanding fuel economy.

Because of this, it’s safe to say that this is one of the most famous PWCs ever built.

Thanks to WaveRunners’ legendary durability, you can still see many of them running on the water.

If you are looking for a Yamaha FX140 for sale, this post is for you.

We at JetDrift have compiled everything you need to know about this legendary PWC into this post!

Yamaha FX140 Review

The Yamaha FX140 was introduced in 2001 and became available in the 2002 model year.

It’s an interesting fact that it was released on August 20th, 2001, on the same day as Sea-Doo introduced its first 4-stroke PWC, the GTX 4-TEC. Both manufacturers found out the other’s release date and didn’t want to just win the silver medal.

This unusual timing embarrassed the media, as everyone wondered which event to publicize!

Additionally, in 2002 Honda announced their entrance into the PWC market, with their 4-stroke AuqaTrax PWC.Ever since, the sit-down type PWCs have essentially remained unchanged. Although new bells and whistles show up every year, the formula is still the same for all sit-down models:Hull + 4-Stroke Engine + Pump + Controls & Gauges = Modern PWCLet’s move on and take a closer look at the Yamaha FX140 engine, hull, and features!

Yamaha FX140 Engine

Until 2002, every PWC was powered with a simple 2-stroke engine. Unfortunately, they were less reliable and durable compared to 4-stroke power sources.

The carburetors especially caused the owners a lot of headaches. Cleaning, adjusting, or even rebuilding the carbs again and again were nerve-racking tasks.

But this was not the main reason why Yamaha and competitor PWC manufacturers moved on to 4-stroke technology.

The driving force was arguably the new environmental restrictions. Manufacturers had two choices, cancel their PWC line completely or upgrade their models to meet the EPA 2006 emission standards.

Fortunately, just like its competitors, Yamaha decided to modernize their WaveRunners to significantly reduce their emissions.

The Yahama FX140 engine was based on the power source of the company’s legendary R-1 motorcycle. However, the developers had to “tweak” some things before this engine was completely water ready.

The first tests started in 1998 with the first-generation MR-1 engine. According to the company, they went through around 15-20 generations of the first WaveRunner and spent $10 million on development before reaching the final design.

The final version of the FX140 engine was a 998cc, 4-stroke, 4-cylinder power plant. It featured a fuel-injection system, double-overhead cams, and five valves per cylinder.

Regarding the cooling system, Yamaha used the industry-standard open-loop cooling system, while Sea-Doo moved on to the closed-loop (CLCS) technology.Thanks to the new power source, the Yamaha FX140 produced an amazing 140HP.

The FX140 was not just powerful, but very reliable and dependable thanks to the new 4-stroke technology.

However, these engines did have some drawbacks as well. The biggest problem was that they were much bigger and heavier compared to 2-stroke engines. To reduce its weight, the FX140 engine came with a one-piece cylinder and crankcase assembly.

As far as lubrication, the MR-1 engine featured two oil pumps and backflow protection. This feature stopped the engine and the oil pumps if the WaveRunner flipped over in the water.Moreover, the new 4-stroke engine was much less noisy and produced 75 percent less emissions compared to the similar carbureted 2-stroke models.

The FX140 also featured Yamaha’s electric engine management system, water-repellant air filter, and zinc anodes for corrosion protection.

Yamaha FX140 Hull Design

When it comes to the Yamaha FX140 hull, it’s safe to say that it was designed for the new 4-stroke engine. Not just the hull, but the top deck was also manufactured from a sheet molded compound.

It had a stepped draft V-hull design and was equipped with sponsons for better handling. With the new hull, the FX140 was very stable on rough waters, as it could cut through the waves without any issues.

The new design also offered good maneuverability and dry rides. The well-padded saddle and the adjustable handlebar also contributed to improved comfort. All of these are very beneficial on longer PWC tours and PWC fishing trips.With the extended hull and large seat, the FX140 was already a real 3-seater PWC. This means unlike many smaller-sized 2-stroke PWCs, it had sufficient stability with 3 adult riders, even at lower speeds.

Yamaha FX140 Top Speed and Acceleration

Beyond the stability and maneuverability, this new 4-stroke WaveRunner had an impressive throttle response. Unlike its 2-stroke cousins, this model accelerated very smoothly. Thanks to the powerful 140HP engine, the Yamaha FX140 top speed was around 56-57 mph depending on the rider’s weight and the environmental conditions.

At that time, this performance was more than enough, even for a 3-passenger PWC.

Towing with a FX140

The FX140 was also a good choice for any tow sports, as it could easily pull out a wakeboarder or skier.

Many tow sport enthusiasts welcomed the new technology, since towing with a 2-stroke jet ski was always quite tricky. This is because the speed control on these PWCs wasn’t easy, which made the wakeboarder or skier’s job difficult. It resulted in “rough” starts and a less smooth riding experience. Moreover, it made the learning process more difficult for beginners.


The wakeboarder could easily pull the craft off line, especially with harder cuts. In fact, this is a general issue on any PWC model, but it seems today’s new hull designs do a better job in such situations.

What’s more, you can find some special PWCs on the market specially designed for tow sports like the unique Sea-Doo Wake and Wake Pro.As a final word, the Yamaha FX140 was a great towing PWC in its time, but better ones can be easily found today.

Yamaha FX140 For Sale

If you are considering purchasing one, you may want to know where to find a Yamaha FX140 for sale.

As this model went out of production in 2004, you can choose from quite aged models.

We recommend that you start your research on forums and in Facebook fan groups. Beyond some good deals, you can find a lot of valuable info there about this model.

It’s always wise to be informed about the selected PWC in advance before making your purchase. Each model has its own pros and cons and typical failures, which you should be aware of.

Besides the forums, you can also find some Yamaha FX140s for sale at Craigslist, PWC Trader, or other ad sites.

Yamaha FX140 Prices

Yamaha FX140 prices start from $2,000 and go up to $6,000. The price depends on many factors like the model year, engine hours, but mainly the condition.

Are Yamaha FX140s Still Worth Buying?

Are Yamaha FX140s still worth buying? It’s a common question of many buyers, who are on the market for a vintage WaveRunner.

Many experts (and owners) say that the answer is simply no. This is because these WaveRunners are quite old and their engines are worn out. Beware that rebuilding an FX140 engine is quite an expensive repair.

Because of this concern, it’s usually not worth it to buy such an old 4-stroke WaveRunner.

If you are a beginner rider, our recommendation is to buy a new (or a couple of years old) non-supercharged, 4-stroke PWC. This is because these are considered to be the most reliable models on the market. And you probably want to spend your time on the water instead of continuously servicing your craft.

If you are stuck on buying an aged FX140, here are some vital buying tips to consider:

  • don’t buy one that is not water-ready
  • make sure that every feature is working properly
  • don’t forget to check the compression in the cylinders
  • don’t skip the water test
  • ask for the service history (if available)

Yamaha FX 140 Specs Charts

For your convenience, we’ve compiled the key specs of the 2002 Yamaha FX 140 into these charts:

Yamaha FX 140 Engine Specs

2002 Yamaha FX 140Engine Specs
Number of cylinders4
Displacement998 cm³ (60.9 cu in.)
Bore and Stroke74 × 58 mm (2.91 × 2.28 in)
Compression Ratio11.4:1
Lubrication systemDry sump
Cooling SystemWater cooled
Starting SystemElectric starter
Ignition SystemTCI
Spark Plug Gap0.7-0.9 mm (0.028-0.031 in)
Spark Plugs TypeNGK CR9EB
Battery Capacity12 V 19 Ah
Charging systemFlywheel magneto

Yamaha FX 140 Drive Unit

2002 Yamaha FX 140Drive System
Propulsion SystemJet pump
Jet Pump TypeAxial flow, single stage
Impeller RotationCounterclockwise (viewed from the rear)
TransmissionConstant mesh 1-speed
Jet Thrust Nozzle Horizontal Angle24 + 24 degree
Jet Thrust Nozzle Trim Angle-10, -5, 0, 5, 10 degree

Yamaha FX 140 Performance

2002 Yamaha FX 140Performance
Maximum Output140hp (103.0 kW) @ 10,000 RPM
Maximum Fuel Consumption11.6 US gal/h (44 L/h)
Cruising Range (at full throttle)1.59 hr.
Trolling speed1,600-1,800 r/min

Yamaha FX 140 Dimensions

2002 Yamaha FX 140Dimensions
Overall Length131.5 in (3,340 mm)
Overall Width48.4 in (1,230 mm)
Overall Height45.7 in (1,160 mm)
Dry Weight798 lb (362 kg)
Maximum capacity3 riders/530 lb

Yamaha FX 140 Fuel and Oil

2002 Yamaha FX 140Fuel and Oil
FuelRegular Unleaded Gasoline
Minimum Octane Rating86 PON /90 RON
Recommended engine oilSAE 10W-30, API SE, SF, SG, SH, SJ
Fuel tank capacity18.5 US gal (70 L)
Engine oil quantity (w/ oil filter)2.2 US qt. (2.3 L)
Engine oil quantity (w/o oil filter)2.0 US qt. (2.1 L)
Total Amount4.3 US qt. (4.5 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 Yamaha FX 140:

What is a Yamaha FX 140?

The FX 140 was the first FX WaveRunner in the Yamaha PWC lineup.

When did the Yamaha FX 140 Come Out?

The Yamaha FX 140 was revealed in 2002.

What Years Did Yamaha Manufacture the FX 140?

Yamaha marketed the FX 140 from 2002 through 2004 and rebranded for FX in 2005.

What Size was a Yamaha FX 140?

The Yamaha FX 140 measured 131.5 inches in length, 48.4 inches in width, and 45.7 inches in height.

How Much Did a Yamaha FX 140 Weigh?

The dry weight of the Yamaha FX 140 was 798 pounds.

How Many People Could Ride on a Yamaha FX 140?

The Yamaha FX 140 was rated for three riders.

What Kind of Engine was in the Yamaha FX 140?

The Yamaha FX 140 was powered by a 4-stroke, 998cc, fuel-injected, inline-4, “small-bore” MR1 Yamaha marine engine.

Was the Yamaha FX 140 Supercharged?

The Yamaha FX 140 utilized a naturally aspirated engine configuration.

Was the Yamaha FX 140 a 2-stroke?

The Yamaha FX 140 was powered by a 4-stroke engine.

Was the Yamaha FX 140 Fuel Injected?

The Yamaha FX 140 featured a fuel injection system.

How Much HP Did a Yamaha FX 140 Have?

The Yamaha FX 140 delivered 140hp at 10,000 RPM.

How Much Oil Did a Yamaha FX 140 Hold?

The Yamaha FX 140 held 4.5 quarts of engine oil, of which 2.3 quarts were replaceable (w/ filter).

How Much Fuel Did a Yamaha FX 140 Hold?

The Yamaha FX 140 was equipped with an 18.5-gallon fuel tank.

How Much Fuel Did a Yamaha FX 140 Use?

The fuel consumption of the Yamaha FX 140 was 11.6 gph at WOT.

What was the Fuel Range of the Yamaha FX 140?

The cruising range of the Yamaha FX 140 was 1.6 hours at full throttle.

How Fast Did a Yamaha FX 140 Go?

The top speed of a Yamaha FX 140 was about 55-57 mph.

Could the Yamaha FX 140 Tow a Skier or a Wakeboarder?

Thanks to its three-seater saddle, the FX 140 could legally tow a wakeboarder or skier.

Did the Yamaha FX 140 Have a Trim System?   

The FX 140 was designed with a 5-position manual trim system.

Did the Yamaha FX 140 Have a Reverse?           

The FX 140 came standard with a manual reverse system.

Did the Yamaha FX 140 Have a Brake?

The Yamaha FX 140 was manufactured without a brake system.

How Much Does a Yamaha FX 140 Cost?

The asking price of a used Yamaha FX 140 varies between $4,000 and $8,000 depending on the year and its condition.