Suzuki GT250, GT380, GT550, GT750 RE5 Benzinhahn, Petcock Nicht-Vakuum UK
1974-1977 SUZUKI GT380. 1974-1977 SUZUKI GT750. 1974-1977 SUZUKI GT550. They generally leak through the front or flow fuel continuously which can fill your crankcase with petrol leading to hydro locking.