If your ironhead leaks past the oil pump check ball(valve) and fills up your primary and lower end after extended periods of inactivity - Get yerself a needle-nose vise grips and put some small pieces of fuel line (so you don't booger up your rubber line) and pinch the feed line shut.
Works for me. Just don't forget to take your grips off - (I always kinda straighten out the line a little before I go rippin' down the road) Maybe I shouldn't be telling you people this stuff???
PS. Zoom in and check my nifty 1/2 link that hasn't flew off yet . . .