Nice bike and welcome. I looked for the part in question, 16134-027, and it is indeed elusive. Is it possible to locate correct banjo fittings, some hose and construct the part yourself? 1975 KT250-A OIL PUMP.pdf Just a few sources: www.denniskirk.com/search/banjo+fitting.q belmetric.com Amazon has banjo fittings too.