4L0-13174-0B Oil Pipe Blanking Plug - RD250LC, RD350LC, RD350 YPVS & RZ Models
Quality reproduction rubber oil injection line plug /blanking rubber for Yamaha motorcycles.
It seals the opening in crankcase, where oil pipes were connected, if premixed fuel is used and oil pump removed.
1983-90 RZ250 (some models)
1983-95 RD350 YPVS