I know it shows 4 in the parts list, but I have not seen an original bike with more than one. Just on the lower hose at the water pump connection. The radiator end of the lower hose is problematic for the cover with the fan shroud and oil cooler connection leaving no room for the screw on the clamp. GT 750 had 2 on the upper hose with a different part number that looked the same but maybe a little different size. They do turn up on E-Bay occasionally. Good Luck.
I have 4 on mine and I bought it from its original owner who was a Suzuki mechanic specialised in RE5. I say "specialized" because he was one of the only 3 certified mechanics trained and autorized by Suzuki America to open and work on the rotor. It was its own motorcyle but I beleive they came that way from the factory anyway. Those cover aren't always easy to put back (specialy the upper one on the radiator side)and they have got lost or forgotten on the bikes which are missing them.