RE: 70 FLH pukin oil out the crankcase breather
Pull your spark plugs out, and crank the engine for a while, weather it be with a kicker or elec starter. this will get most of the oil out of the case.
when you are satisfied that most of it is out of the enging, i.e. the engine turns much easier, then go ahead and start it up. keep an oil pan under the breather hose during all of this, as oil WILL come out
this is very common, and fixing the check ball may not do anything for you.
ride the bike at least a couple times a week, and if you still puke oil, then go ahead and do the check ball fix, but if there is little to no oil out of the breather when ridden regularly, don't worry about it.
I've seen bikes with BRAND NEW PUMPS sump like that after sitting a couple of months.
another thing you can do, if you are going to let it sit, is to pick up a fuel line clamp, at autozone or the like and clamp the feed line when you park the bike, JUST REMEMBER TO TAKE IT OFF BEFORE YOU START IT!!!!!!!!