Rave valve position

[battscrew]

Understand that if the button is flush at the top better top end and if screwed down better from the start.

Just wondering what the most common position is and why you use it?

thanks!

 

[JPX]

The screw position changes when the RAVE valve actuates as the revs increase. Screw is kind of a pre-load for the spring as long as the valve is clean and not sticky. So for idling or top speed this has no real effect. Just changes the "kick" in the midrange as you accelerate.