Description Ignition Coil -Replacement external coil -OEM: 860-82310-40 Compatible With: Yamaha All Models Except SR 1971-1973 All Models Except GPX 1974-1975 Enticer ET 250 1977-1981 GP (All GS 250, 300, 340) 1976-1978 PR 440 1976-1977