The Solas Amita 3 9x7 is engineered specifically to serve owners of classic Yamaha 8 HP outboards with a pin-drive propeller system. These older engines, often used as primary or auxiliary power for small boats and yachts, need the right prop to perform efficiently. The Amita 3 9x7 delivers just that – the correct geometry and durability to replace the original (and possibly now hard-to-find) Yamaha propeller.
At 9 inches in diameter and 7 inches of pitch, this three-blade prop provides an optimal combination for an 8 HP engine: a sufficiently low pitch to let the motor reach its power band, and enough diameter to push water and move the boat steadily. Once installed, you’ll notice smoother acceleration and better control of your small craft. For example, on a sailboat’s auxiliary motor, the Solas 9x7 aids in improved handling during docking and maneuvering, thanks to its better “grip” on the water.
What makes this prop special:
- Compatibility with Rare Models: Yamaha 8HP outboards from the 70s and 80s using a shear pin system are no longer common, and original parts for them are hard to come by. The Solas Amita 3 9x7 fills this niche by offering a fully compatible alternative that’s designed to OEM specifications (including the pin slot geometry).
- Greater Durability: The original props for these small engines were often made of softer metal or plastic. The Solas aluminum prop is far more resilient – it won’t warp or break easily if the prop strikes sand or wooden debris. This extends the component’s life and reduces the need for frequent replacements.
- Improved Efficiency: Owners report that after switching to the Solas Amita 3 9x7, the engine runs more smoothly and the boat attains slightly higher speed. This can be attributed to the modern blade profile, which is engineered for maximum efficiency by today’s standards.
- Versatile Use: This propeller can be used on small fishing dinghies and inflatable boats as well as on sailing yachts as an auxiliary. In all cases, you get better low-speed maneuverability and reliable thrust when you need it – for instance, when facing a headwind or current.
- Easy Maintenance: The aluminum surface is coated and smooth, which makes it easy to clean off any clinging algae or barnacles. Simply rinse with fresh water after use in saltwater conditions and periodically check the cotter pin – the prop itself requires no special care beyond basic inspection.
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Engine Brand:Yamaha
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Propeller material:Aluminium
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Blades:3 blades
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Rotation:Right
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Mounting, Tooth Spline:Pin
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HP:6 - 8 hp
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Diameter:9" // 22.86 cm
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Pitch:7" // 17.78 cm
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Gearcase:Pin




