A Yamaha WaveRunner jet pump is a mechanical device that is used to propel a Yamaha WaveRunner, The waverunner jet pump consists of a housing that encloses a series of impellers and diffusers, which are designed to create a high-velocity jet of water that propels the watercraft through the water.

The waverunner jet pump is located at the rear of the WaveRunner and is powered by the engine through a driveshaft. As the engine runs, it rotates the driveshaft, which in turn rotates the impellers inside the jet pump housing. The impellers draw in water through an intake at the front of the jet pump and then accelerate it through the diffusers, creating a jet of water that propels the WaveRunner forward.

The jet pump is a critical component of a WaveRunner, as it is responsible for providing the thrust needed to move the watercraft through the water. It must be able to withstand the high speeds and stresses that are encountered during operation, and it must be carefully designed and balanced to ensure efficient and smooth operation.

Proper maintenance and care of the jet pump is important to ensure that it performs at its best and has a long service life. This includes regularly inspecting the jet pump for wear and damage, and replacing it as needed. It is also important to ensure that the jet pump is properly lubricated and aligned to minimize wear and ensure smooth operation.

If you are not sure what Yamaha Jet Pump or housing you need? You can use our Yamaha Pump Chart