2 hoses on top of canister. smaller diameter which connects to the throttle bodies gets plugged up. Your choice of either plugging up the hose or removing it entirely and plugging up the throttle bodies by replacing the nipples with screws.
the larger diameter hose is just a vent for the tank, do not plug this one up.
The euro models have this hose connected to a T connector which joins the second breather hose from the tank and vents to the bottom of the crankcase.
Add the euro air deflector to clean up the side. Moto wheels normally has them in stock. I called everywhere else for this, all other stores have to order from italy.