Best Prop for 90hp Yamaha 4 Stroke

Best Prop for 90hp Yamaha 4 Stroke
Best Prop for 90hp Yamaha 4 Stroke (Image: © Sea N Swim)

A propeller, often referred to as a “prop,” is a vital component of your boat’s propulsion system. It consists of blades that rotate when powered by the engine, generating thrust to move the boat forward. Selecting the correct propeller for your 90HP Yamaha 4-stroke engine is essential. It can significantly impact various aspects of your boating experience, including speed, fuel efficiency, and manoeuvrability. Your propeller not only affects your boat’s performance but also its fuel efficiency and overall handling. In this comprehensive guide, we will explore the world of propellers and help you find the best prop for 90hp Yamaha 4 stroke.

Importance of Choosing the Right Propeller:

Selecting the appropriate propeller for your 90hp Yamaha 4-stroke engine is vital for several reasons:

Improved Performance:

A well-matched propeller can enhance your boat’s performance, providing better acceleration and top speed. It ensures your engine operates within the recommended RPM range, optimizing power delivery.

Fuel Efficiency:

The right propeller can also improve fuel efficiency by ensuring your engine operates at an ideal RPM range, reducing fuel consumption and saving you money in the long run.

Handling and Control:

The propeller you choose can influence your boat’s handling and manoeuvrability. It plays a role in how your boat responds to steering and maintains control, especially in rough waters.

Factors to Consider When Choosing a Propeller:

Pitch and Diameter:

The pitch and diameter of a propeller are critical factors. Pitch refers to the distance a propeller would move in one revolution if it were moving through a soft solid, while the diameter is the width of the circle the blades make when they rotate. These two factors affect the engine’s RPM and boat speed.


Propellers can be made from various materials, including aluminium, stainless steel, and composite materials. Each material has its advantages and disadvantages, impacting durability and performance.

Blade Design:

Blade design influences how efficiently the propeller moves through the water. The number of blades and their shape plays a crucial role in performance.

Solas vs OEM:

You can choose between Solas propellers and OEM (Original Equipment Manufacturer) propellers. Solas propellers are known for their aftermarket performance improvements, while Yamaha designs OEM propellers for optimal compatibility.

Boat Type and Use:

Consider the type of boat and its primary use when selecting a propeller. Different boat styles, such as pontoons, fishing boats, and speedboats, may require specific propeller characteristics.

Maintenance and Care:

Regular Inspections:

Keep your propeller in top shape by regularly inspecting it for damage, dings, or debris. Damaged propellers can negatively impact your engine’s performance.

Cleaning and Polishing:

Clean and polish your propeller regularly to reduce drag and enhance efficiency. A well-maintained propeller will ensure optimal performance.

Frequently Asked Questions

Is stainless steel a better material for propellers than aluminium?

Stainless steel propellers are more durable and corrosion-resistant than aluminium ones. However, they are also more expensive. The choice between the two materials depends on your budget and priorities.

Can a propeller upgrade improve my boat's top speed?

Yes, selecting the right propeller can improve your boat’s top speed by optimizing its performance and efficiency.

John has been hooked on boats and fishing lately. And he’s got a ton of fishing tricks to share. He has been writing blogs related to boating and fishing niche for years now.