I have not checked the Spada but I am guessing it might be the same as the VTR250 sans the air cut u-rings. https://www.litetek.co/Carb_Kit_Honda_VTR250_MC33.html We use Flourosilicone for the float bowl seals and we are not the cheapest.
https://www.ebay.com.au/itm/Honda-V...249403&hash=item3ababb0075:g:jNMAAOSwsqdcDjrr ................................................................................................................ I've used these a number of times, not sure why they recently put their prices up !
I added a Spada seal kit. I like Spadas and VTR's. Have to add the Spada to the wish list. https://litetek.co/Carb_Kit_Honda_Spada.html
There are differences between VT 250 Spada Carb kits and those for the VTR.. Factory spec for Spada main jet is 108, spec for vtr is 115, the float needles appear to be different even though the specs of the float height is identical at 6.8 mm.. I'd suggest sticking with kits designated for the spada..