HI I´am woorking on a frends 74 dt175 and when he got it the oil inj tank was gone and they were just mixxing the gas but I was afrade the carb would plug up from mix gas but I cant find were the oil tank hook´s up to the inj I see the two hoses the one shooting below the carb in the cyc the other one looks like it come´s from the gear box I thought the guy before hook the hose for the inlet for the inj to the gear box breather or is it supost to be like that if so how do I supply oil to the inj cant find any info on the net thanks alot