Thank you for this reply,
I have removed other canisters, like on my R9T scrambler,
and I just had to run the tank hose down towards the ground, and plug up 1 vacuum port.
Looks like this is kind of the same, with removing this air valve, and making the T , not be a T,
but connect across ?
the little rubber hoses remind me of the vent tubes on my ZRX normal carbs, they
usually just vent to air, but hide behind the side covers, so air does not whistle across them.
Most of your assumptions above are correct, however words can only do so much... It will never be like explaining on-site what to do exactly.
To clarify further from my previous post:
1) On throttle-bodies side, the central "T" shown in previous photo has to be replaced with a single short hose as shown in this new attached picture. Thus the idea is that all 4 vacuum hoses (1 for each throttle-body) are linked in a closed loop and will balance each other.
Plugging this middle "T" would also be equivalent, but you are adding complexity and 1 more part instead of reducing / simplifying the 4-into-1 arrangement. Once done like in this photo, the arrangement will be exactly like other K1200RS came from factory (outside USA).
There is also another larger 4-into-1 hose on the other side of the throttle-bodies that you cannot see (and do NOT need to touch in relation to canister). The job of this other 4-into-1 hose is to vent crankcase vacuum/pressure into the throttle-bodies - including some oil mist unfortunately.
2) On the fuel pump side (under tank , right side), one of the 2 small hoses use to go to canister. This one can now go down toward the ground like the other vent / drain did (both will now be together between frame and transmission toward swing-arm).