old? gas in bottom of air filter housing. 2000 R1100S

I have been pulling parts off to get to the battery as the battery light went on and gonna put my new struts in anyway when they get here. I had to remove the air inlet housing to get at the battery, and while there, I pulled the air filter out thinking I would replace it. I looked down in the housing leading to the fuel injection and saw what looked like gummy gas and smelled same. Then I looked at the lowest point ad saw some pooling of same. I looked at the outside of this closed air box and saw what looks like nipples closed off by rubber or plastic boots with plier pinch hose clamps holding those in place. Is this normal so one can drain a normal back wash of fuel residue? Is this a place where a prior owner removed something and plugged the drains/vents? Here is a pic of the clamp over the rubber or plastic plug. Thanks.

Usually when I see this setup, the residue is glop (technical term) from the crankcase ventilation system. It surely can smell like “old gas” and have a oily consistency. I don’t know the specifics of your bike but have see this many times.
OM

This picture seems to show a cap and clamp at that same location...maybe it's for an occasional drain to see what might have collected:

https://www.realoem.com/bmw/enUS/sh...59S-BMW-R_1100_S_98_0422,0432_&diagId=13_0850

Thanks

I will take the clamp and cap off and see what drips out. I will look for a crankcase breather. Thanks

The crankcase breathers are routinely routed into the air box....emissions doncha know. Chances are the residue you see is what didn’t get sucked back into the engine for “recycling”. Probably only have to swab the air box out and wait until it happens again.
OM

Natural occurrence. Happens more often when one has over-filled the oil. Remove clamp, remove cap, drain oil. Good practice to do every oil change.

Thanks folks

Will do! I love this forum!