Whats the go with wrinkle finish sprayed in the chamber and ports on factory Heads.
I guess it burns off in the chamber and exhaust ports but not on the intake.
Here's another.
Surely they could use plugs or templates to cover those areas when they spray.
But then again no one sees it when they buy a new bike, just a bit of a suprise when you pull it apart.
they won't go rusty
Adds turbulence to air/ fuel ratio! Lol