Water in the Gearbox Oil of a BMW Airhead Motorcycle

Airhead BMW motorcycle in the shop for a post purchase inspection. Found lots of water in the gear oil, which is the result of condensation from sitting or from short trips. Change gear oil annually. When you ride, get the bike hot enough to evaporate any moisture that might be in the gear oil, short trips won't cut it. When you buy a used bike, change all the fluids regardless of what the seller tells you about service history.Water is heavier than oil so it comes out first. If you have been riding the bike with water in the gear oil it will blend and come out looking like chocolate milk.