I need to know if there is an O ring that is installed on the breather pipe to the crankcase. I can't find an O ring in the parts list. In the factory service manual it shows an O ring and explains how to install it; however, in the Haynes manual it does not show an O ring. I pulled the screen, pressure regulator to check for debris. When I pulled the breather pipe there was no O ring installed. I have a 2001 Hayabusa that I drag race. Hope someone can give me some heads up information! and part number.
Thanks
br1tish
