: If the tt pump has the hicas outlet on it, you'll hafta cap it off. If the pump is out of a 94 or newer tt (electronic hicas) then I would imagine it would ba a straight swap. : I'm not 100% sure on this tho....keep checking.
I am not sure about the 94-96TT's pulley. However, I think that 94-96TT has the same pulley (4 ribs) like the 90-93TT according to unorthodoxracing.com's, which they share the same blet.