The SAI6535A cam gear is designed for a wide range of. Saito four-stroke engines. Specifically, it fits the following models: FA-56B, FA-56BGK, FA-62B, FA-62BGK, FA-72B, FA-72BGK, FA-82B, FA-82BGK, FA-91S, FA-91SGK, FA-100, FA-100GK, FA-115, FA-115GK, FA-125A, FA-125AGK, FA-182TD, FA-170R3, FA-200R3, FG-11, FG-14C, FG-17, FG-21, FG-33R3, and FG-60R3.