That dip you re saying at 6k rpm it looks like a little hick up when accelerating right? Mine always did that since the beginning, never bothered that much with that, besides it does only when the bike it's still cold. After block the pair valve I did notice that dip is almost not present by now.
BTW, the issue with the bung getting loose inside the airbox and possibly enter the throttle body, it's quite difficult because there is a flange on airbox cover that presses the rubber bung into the hole.
Thanks everyone for all the help.
So... blocked the air flow to the pair valves in the correct hole right now 😁. After a short ride, can say that it sounds better, the stutter is way lesser than before. It's still there but I think it's the nature of this BS throttle. Also the rumble at low rpm is more subtle than before and...
Just pretty scared that anything enters the throttle body, that will be the end of the story.. . I pretend to check the effects of the pair valve blocked first, and if it is OK I will plug it from below the air box or even ask the mechanic to take everything.
Regarding the plug of the pair valve... Is there any issue of blocking the hole from the inside of the airbox with some sort of plug? Can that plug be sucked into the airbox and then enter the throttle body?
Damn, I thought it were there... But it seems they have connection to a underneath channel below.
So it's the green one? What is the blue one? Some kind of drain for that oily residue? But aren't they outside the airbox chamber?