Motorcycle Repair: 1985 ironhead 1000, screw, good luck

Question
where do icheck primary oil,and where do iadd oil?

Answer
The primary and trans share the same oil. You add oil from the center inspection plate on the primary cover. If you dont have a leak, then you dont need to check the level. If you need to add oil then, with the bike sitting upright, at the bottom of the primary cover at the center there is a screw. remove it and fill with oil until the oil runs out that hole where the screw was.
Good luck and happy riding
Mike