Honda still makes these, SKU: 16212-MB6-010 INSULATOR, CARBURETOR (Honda Code 2333177) I just bought a set from Motorcycle Parts ON SALE NOW Dillon Brothers Honda, Kawasaki, Suzuki, Yamaha ATV, Off-Road & Street but any dealer should be able to get them. $6-$8/ea depending on where you order. '84 1000F and '85-'85 1000R use the same boot.