Bike was well hydrated

[Huff1371]

So after letting the bike sit for a week (not by choice) I started it up to go for one and it took forever to start then seemed to just bog down it I gave it throttle. I was thinking maybe the gas was crap or something in the carbs ( filled at a Sheetz  ) so I ran out and got a few gallons in my jerry can. put the key in the cap and struggled and struggled to get it open, felt like sand and crud was stopping it. When it finally opened I noticed tons of corrosion on the inside of the cap so I knew the vent was plugged. Easy fix as its really easy to break one of these vent caps down to re-lube/rebuild but that leaves me with water in the tank/carbs.
Here's where it got ridiculous. I pulled the tank off, then drained the bowls and lines.Could see almost all water... So that left me to draining the tank. Well, as it turns out, I had about 1/4 gal of water in my fuel system. WTF? I guess it just was accumulating rapidly in the day it took to rebuild the cap. Luckily, after pouring some alcohol in the lines and filling it back up, I'm in good shape and back on the road. Lesson Learned- CHECK AND MAINTAIN YOUR VENT CAPS.

[Badot]

1/4 Gallon in a day seems rather impossible unless it was out in a crazy downpour or you have some crazy temperature swings in high humidity, coupled with air freely flowing through the tank. Even if it accumulated over time, I'd imagine the bike would run fairly badly because of it (like what you described).

Was it in the rain for any time during the week it was sitting? My first thought would be that it could possibly be caused by an issue in the drain line that runs from near the filler neck, through the tank, and out the bottom.

[Dizzledan]

Lesson Learned- CHECK AND MAINTAIN YOUR VENT CAPS.

Stop the problem at the root cause. Park your bike inside, under a carport, or under a vented bike cover.

[Huff1371]

Now that you mention it, it did rain.  Even with that it seemed excessive.
Carport? Garage? Vented cover? But how will my bike get washed . It gets to go inside in the winter. And until it stops misbehaving,  that's the only time.

[Higgins13]

Lesson Learned- CHECK AND MAINTAIN YOUR VENT CAPS.

Stop the problem at the root cause. Park your bike inside, under a carport, or under a vented bike cover.

I could not of said it better