I watched a video of Koenigsegg Free Valve Technology and he took 47lb. off a 1.6l motor pertaining to the camshaft system. Someday maybe Kawasaki will license this tech and give us a world class motor.
Motorcycles are becoming very expensive to purchase. No one likes to do valve clearance checks anyway.
https://www.youtube.com/watch?v=S3cFfM3r510&t=12s