one way bearing

hi folks, im just checking on what i know about the one way bearing.
i could be wrong but i thought that it is directly related to the engine brake.
i lost my engine brake on my king quad and had to replace the one way bearing and it fixed it.
i dont know if the can-ams are the same but when i put my gates belt on everything looked familiar to the king quad.
if not then how does the engine brake work on these can-ams?