Why Do Jet ski Shoot Water up in the Air?

We have seen jet ski shooting water in the air, but why do this jet ski spray up water ? This is common query among jet ski beginners.

Well, in this article, we will explain the reasons and brands who are using this tech.

Reasons for Water Ejection:

• Visibility: Jet skis shoot a stream of water high into the air, which increases visibility by creating a ‘rooster tail’ effect. This is particularly catches eye, something which is advantageous during daylight hours.
• Brand Identity: Similar to unique features of vehicles for brand recognition, the water spout on certain jet ski models serves as a trademark characteristic.
• Cooling Function: Jet skies have compact and powerful thrust motor, it need to cool down. Passing some water from this motor helps in cooling down the overheated motor.

Adjustable Features:

• Water spout out may be good for engine or brand characteristics, but may be disliked by owner or rider, it can be modified or removed. There are kits that allow riders to control the spray, depending upon personal preference.

Water Ejection and Its Purposes

Cooling Function

Jet ski are design with cooling system that utilizes water from the surroundings. As the engine runs, it generates heat which must be dissipated to avoid overheating. To do this, water goes through the engine to absorb heat, then expel warm water.

Safety and Visibility

Aside from cooling the engine, the shooting water also serves a safety purpose. This visibility spout comes to rescue when jet ski visibility blends with waves. This visual alert helps to prevent collisions and that is why we see such water shoots up on various jet ski models.

Trademark Characteristics

Shooting water in air certainly catches anyone attention, but only Yamaha brand is utilising this tech, certainly helping its brand recognition. This makes Yamaha wave-runner standout among other brands.

How Does the Jet Ski Water Spray System Work?

To understand how this system works, it’s important to recognize the role of the jet ski’s impeller. The impeller functions by pushing water through a nozzle at the stern of the jet ski, which propels it forward. As a byproduct of this propulsion, some of this water is redirected upwards through a separate tube making rooster effect, also known as visibility spout.

Here’s a step-by-step breakdown of the process:

1. Water Intake: Water enters the jet ski through an intake grate at the bottom.
2. Impeller Action: This water gets forced by the impeller, which acts like a pump.
3. Thrust Generation: The majority of water exits through the rear, creating forward thrust.
4. Water Redirection: A portion of this water is then channeled up through a vertical tube or pipe.

Brand Variations and Technologies

Yamaha: One standalone feature of some Yamaha jet skis is a visibility spout, which helps in making the watercraft more noticeable to other boaters, boasting safety through improved visibility.

Sea-Doo: Sea-Doo has taken a different approach with their lineup, often focusing on diverse range recreation activity and sporty design, which may include features related to stability and control rather than visibility spouts.

• Design: Sea-Doo models often feature innovations like the Ergolock system for better rider comfort and control.

Kawasaki: Kawasaki jet skis are renowned for their power and sportier design, which specific targets performance oriented audience.

• Design: Kawasaki often emphasizes powerful engines, appealing to young looking for speed and unique features.

Frequently Asked Questions

What is the purpose of the water spout on jet skis?

The water spout on jet skis, often called a “rooster tail,” is primarily a safety feature. It makes the jet ski more visible to other watercraft, reducing the risk of collisions.

What should I do if my jet ski’s water spout isn’t functioning properly?

It’s important to inspect the jet pump and check for blockages or damage. Consulting the manufacturer’s guidelines or seeking help from a professional are the best next options.