82 yahama crankcase

[DennisATV125]

I continue to mess with my 82 YTV125J three wheeler. I need to know where the lines go from the fitting on the crankcase. Looking from the rightside of the trike, near the bottom by the crankcase oil fill, are two fittings together. I think that the left 'rear most' fitting is simply a breather line for the crankcase. Where does the line beside this one go to. My guess is either to the carb or to one the fittings on the top of the crankcase. Of those two fittings, I believe that the left fitting goes to the oil fill tank as an injector line to mix the oil to the gas. Where does the right fitting go to?
Please let me know, I cannot take a picture of the setup, but hopefully someone will know from my descriptions.
Thanks, Dennis