How Fast Can a Jet Ski Go? Top Speeds Revealed

By Sarah Miller · June 17, 2028

Jet skis can reach speeds of up to 67 mph (108 km/h), with high-performance models like the Kawasaki Ultra 310X and Sea-Doo GTX Limited 300 topping the charts. Entry-level models typically max out between 40–50 mph, while race-modified variants can exceed 80 mph under ideal conditions.

Understanding Jet Ski Speed Capabilities

The top speed of a jet ski depends on its model, engine power, hull design, rider weight, water conditions, and whether it's restricted by manufacturer settings. Modern personal watercraft (PWC) are engineered for both performance and safety, balancing speed with control.

Factors That Influence Jet Ski Speed

Engine horsepower: Ranges from 60 HP in entry-level models to over 300 HP in premium variants.
Rider and passenger load: Additional weight reduces acceleration and top speed.
Water conditions: Choppy water or strong currents reduce effective speed.
Weather: Wind resistance and temperature affect engine performance.
Manufacturing speed limiters: Most stock jet skis have electronic governors limiting speed to 67 mph for safety and regulatory compliance.

Top Jet Ski Models and Their Speeds

Performance-oriented jet skis dominate the high-speed category. These machines combine powerful engines with aerodynamic designs to deliver thrilling rides. Below is a comparison of leading models based on verified test data.

Model	Engine (cc)	Horsepower	Top Speed (mph)	Top Speed (km/h)	Weight (lbs)	Year Tested
Kawasaki Ultra 310X	1498	310	67	108	986	2024
Sea-Doo GTX Limited 300	1630	300	67	108	925	2024
Yamaha WaveRunner FX Cruiser SVHO	1812	250	67	108	874	2024
Kawasaki STX 160	1498	160	55	89	783	2023
Sea-Doo Spark 60HP	899	60	42	68	496	2023

Table data source:1, 2, 3

The data shows that despite varying engine sizes and horsepower, most factory jet skis cap out at 67 mph due to industry-wide speed restrictions. The Yamaha SVHO model achieves similar top speeds to higher-horsepower competitors thanks to its supercharged engine and efficient hull design. Lighter models like the Sea-Doo Spark prioritize affordability and fuel efficiency over speed.

How Racing and Modified Jet Skis Exceed Limits

While consumer models are electronically limited, racing and modified jet skis can surpass 80 mph. Enthusiasts often remove speed limiters, upgrade impellers, install performance exhausts, and tune engines for maximum output.

Common Modifications for Increased Speed

ECU remapping to disable speed governors
High-flow intake systems
Performance impeller and pump upgrades
Reduced vehicle weight via component removal
Aerodynamic enhancements

These modifications require technical knowledge and may void warranties or violate local regulations. Always check regional laws before altering your PWC.

Safety and Legal Considerations at High Speeds

Operating a jet ski at high speeds demands skill, awareness, and adherence to safety protocols. Many jurisdictions impose speed limits in coastal zones, near swimmers, or within marinas.

Safety Tips for High-Speed Riding

Always wear a life jacket and helmet
Maintain safe distances from other vessels and swimmers
Avoid sudden turns at top speed
Check weather and water conditions before riding
Never operate under the influence of alcohol or drugs

Frequently Asked Questions About Jet Ski Speed

What is the fastest jet ski available in 2025?

The Kawasaki Ultra 310X and Sea-Doo GTX Limited 300 are tied as the fastest production jet skis in 2025, both capable of reaching 67 mph (108 km/h). These models feature advanced hull designs and powerful engines optimized for speed and stability.

Can a jet ski go faster than 70 mph?

Stock consumer jet skis are electronically limited to 67 mph for safety and legal reasons. However, modified or race-spec jet skis can exceed 70 mph, with some custom builds reaching over 80 mph under optimal conditions.

Why are jet skis limited to 67 mph?

The 67 mph limit is an industry-standard agreement among manufacturers to promote safety and comply with U.S. Coast Guard and international maritime guidelines. This restriction helps prevent dangerous riding behavior and reduces liability risks.

Does rider weight affect jet ski speed?

Yes, heavier riders or additional passengers increase the overall weight, requiring more power to accelerate and maintain top speed. A fully loaded jet ski may lose 5–10 mph compared to solo operation, depending on the model and conditions.

How do I make my jet ski faster?

You can increase speed through aftermarket upgrades such as ECU tuning, high-performance impellers, and exhaust systems. Removing the factory speed limiter is common but may violate warranty terms and local laws. Always consult a certified technician before modifying your jet ski.