Posted May 31, 201212 yr I just bought a DT175B (1975) and got it running. The bike does not idle below 3000 rpm and the choke has to be on for it to run. It is also burning a lot of oil. I suspect leaking crankcase seals. Has anyone done this replacement? Could you give me the steps necessary? Also is there a service manual available? Thanks for your help. Oscar
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