Description
The RHAAS Kawasaki 440 & 550 Conversion to a Yamaha 650/701/760 Engine is a complete, engineered kit that allows you to drop a potent Yamaha three-cylinder motor into your Kawasaki 440 or 550 hull, unlocking performance and reliability gains that feel like a new ski. This comprehensive package includes precision-machined conversion plates, special-height billet motor mounts, electrical box adapter, battery relocation kit, engine coupler, and all necessary hardware and instructions. The engineering is already complete-all the hard work has been done for you, leaving only straightforward assembly and tuning.
- Complete engine conversion kit for Kawasaki 440 and 550 hulls
- Accepts Yamaha 650, 701, or 760 triple-cylinder engines
- Includes all conversion plates and specialized motor mounting hardware
- Custom electrical box adapter ensures proper wiring compatibility
- Battery relocation kit optimizes weight distribution and packaging
- Engine coupler and all fasteners included for complete installation
- Anodized 6061 aluminum and stainless steel components resist corrosion
- Option available to modify your existing bedplates to use stock Superjet mounts
Converting a smaller Kawasaki hull to a larger Yamaha motor is one of the most transformative upgrades in jet ski modification, and this kit removes the guesswork and custom fabrication. The billet motor mounts are precision-engineered to account for the size and weight differences between the two engines, while the electrical and battery systems integrate seamlessly. This conversion is popular with riders seeking a significant power jump, better reliability, and a more modern powerplant without having to source a different hull. The kit represents thousands of hours of RHAAS development, distilled into a plug-and-play solution.
