Honestly...it's the nature of the beast.
Early bikes breathed through the crank case,after they sit oil will accumulate in the bottom of the case and when you start up the bike it has nowhere to go except out the vent hose. I would route yur breather hose towards the ground and just put something underneath it before you start it, let it puke and after it clears up drive away. You might try the check ball re-seating, but check with early evo and shovelheard owners, what you're describing is very common.
BTW- they did change the breather design in 93 so if you ever replace oil pump or top end gaskets be sure you get the correct ones.

 

Yeah, they just about all do that. Mine usually does if it sits long enough, and always has (since new). I used to be a sailor and I'd be gone up to 6 months at a time and when I'd get back, it would always do it. My old shovelhead did that too. I just put a oil drain pan under the bike when I start it if it has been sitting. My breather goes down to a breather filter, not up to the air filter.

 

i love this forum. any question is always answered. i'll be rerouting the vent hose on start-up until i can get the new spring installed.

 

My 87 FLHTC will do that also after sitting a while. Usually when I first start it after storage. I throw a pan under the breather that I have pointed down by the trannny. Once in a while during the season. I don't know what a"lot" is to you. Mine will dump a pretty good puddle. Probably a few ozs. 2-4 ozs I would guess.

 

Gosh, hope I remember this right, seems like I read that the fix for this is indeed reseating the ball. I think a pushrod with valve grinding compound on the seat did the job. Just wish I could remember where I read this.

 

See post #10 this thread.

 

Ahhhh, OK then, Just call me dummy.

 

If you decide to do the tapping on the ball method, you should replace the ball as tapping can/will damage it.

 

hasnt this been covered about a million times already??try cleaning the seat,if the seats got a burr,get an old p/rod,some lapping compond,lap it(make sure you get compond out ,ide take pump body off) not a big one,
kirby
vee twin racing

 

Any tips on finding an old push rod? I have a FXR that needs the treatnement!