Fuel in air cleaner

[Handlebar1]

I have a recent problem with power with my 2000 FXDWG. All was well this Spring, I changed oil and was enjoying the rides. Then I filled up, and immediately the scooter was running poorly. It runs fine (starts, shifts, goes forward) but I can't go faster than about 60mph, and it is a challenge to get to 5th gear.
I thought maybe bad gas (still on that tank, though I put a gallon of premium in yesterday) but I also saw brown liquid coming from my air cleaner (not stock, but after six years, I have not had a problem with it). I took the cover off, and the filter (wire mesh) had gas in it. There is also a smaller filter below (air intake area (?)) that has gas in it.
Any ideas?

Thanks

[JD]

Carb bike? If so, could be your float. Hard to say without more info.

[Handlebar1]

Yes it has a carb.
But if it was a float, wouldn't it idle crappy and run well at higher speed?

[JD]

Not necessarily.

Could also be the diaphragm on the slider. Sometimes they get dry cracks, pinholes, or just have a bad seal somewhere. If they do not hold vacuum and leak it will not open up with RPM and you run rich.

[Handlebar1]

Thanks.
Now I'll start taking her apart....