Secondary Throttle Plates

[Kawazaki]

I have one of Hanso's wonder tunes, and he has them open 100% to remove the 3+4 gear restriction. I was wondering if the ECM programs the plates to close in other areas not shown on the secondary position chart. Mine are installed and it seems the engine responds then really responds when you whack the throttle in higher gears. It's as if the plates close down upon throttle opening, then open back up again a second later to give you full power.

Yes, the secondary throttle plate is responsible for that delayed throttle response. Removing them, makes the throttle response instant, and a lot harsher. Race bikes do not have them, as well as dirtbikes, only streetlegal bikes are required to have them.