I posted this query for my NF5 motor at RS250 area but as many NSR owners install RS NF5 top end at their bikes i think that belongs and here.

Is anyone have any experience with change the angle of the aluminum water hose of RS250 NF5 head?
I have two rear cylinder heads and i want to fit the one on the front cylinder,the only issue after easy cutting the heads mount is the angle of the aluminum hose which needs 45 degrees change.
Is anyone tried it or know how this aluminum hose fits to the head,is it pressed or screws?
Any info will be helpfull as i dont want to try it blindly with a damage result.