Harley Big Twins are dry sump engines, so there is little oil in the crankcase. Changing the oil in the oil tank is all that's necessary.
What oil
There is no oil in the crank case,,you use mixed gas and oil that's what lubes the crank bearings and piston rings.
TAKE OFF HOSE CLAMP UNDER CRANK CASE AND DRAIN OIL
You really should think about asking the Harley Dealer Maintenance guys why your baby is doing this. I know if my 90 FXR was they would be my first source of information. Good Luck This may happen if you haven't driven your FXR in a while or you overfill your oil. What happens is that the oil will collect at the bottem of your crankcase. What you need to do is, run you bike for a good 10-15 minutes before taking off or just ride more. This is common on the FXR's Evo engine, but it may be a different problem if it continues. You should have it checked by a professional.
The drain plug under the crankcase is for removing the old oil during an oil change. Always change the oil filter at the same time.
Place a drip pan beneath the crank case of your 1999 Road King motorcycle. Remove the crank case plug. Allow the oil to completely drained out. Replace the plug to its original position. Fill the motor with oil.
No oil in crankcase in a Harley Big Twin. All FXR's take three quarts in the oil tank.
1.2 litres into the oil tank 1.0 litre into the crank case 2.2 litres in total when changing oil filter
The Crank Case is dirty. Use a good Crank Case cleaner to solve problem like Motor Medic Motor Flush. Warm engine 5 minutes and let clean out for 5 to 7 minutes. Then drain and use fresh oil.
PW 80 is a 2 stroke. It does not have oil in the crank case. I think you mean transmission oil. I use 10w40 engine oil in mine and it works great.
That depends on your moped. Most mopeds madein the 80's are two stroke engines. Which do not use oil in the crank case. the oil is mixed in with the fuel.
your crank case does not take oil at all. your transmission however will take usually 1 to 1.5 quarts of approved transmission oil.