My Rotax 912 is an older engine from about 1991 and the oil reservoir does not have a drain plug on it. Would not do any good to have a drain plug since the reservoir practically sits on the engine and I'm sure I could not remove the plug without removing the engine.

It's a pain in the butt to remove the reservoir every time I change the oil. I'm thinking of getting a pump to suck the oil out. I know that there will be a small amount left in the tank so I thought every other oil change I would remove the reservoir.

Anyone else out there that does similar? Also do all of you purge the oil lines per Rotax recomendations after removing the reservoir?