MPG is low

Currently getting high 40’s mpg. That seems low? I do ride pretty hard on the throttle most of the time and cruise 75-80mph on hwy. I live in San Diego, CA so I’m sure that doesn’t help withhe crappy blends I hear about.

If it makes you feel any better I have had numerous tanks in the upper 40's, particularly when commuting and I dont run that fast most of the time.
Touring/on trips it tends to run in the low 50's.
My average since I bought the bike in 2013 is 49.54, max is 58.17

Yeah gotcha, it was a lot higher when I had a long highway commute. More city riding now.

Which "Gallon" are we talking about here lol?. L/100km is so much easier

I have tracked my mpg since new and now have 15000 miles . My total mpg avg. is 58.86. I run one tooth less on the counter shaft. Lowest is 48 and highest was 71. Mostly day rides and a few over nights in the east however I have done 3 trips in Washington , Idaho .Co Utah, these were 10 day-ish gravel road trips. We have 3 TR650s in the group and this seems about the same across all the bikes.
No real change in milage with any mods . All the bikes have the Pod mod, No change with the re-flash.

I concur. I have a Terra with the podmod and 21000 miles ridden since new. Occasionally get a Low around 64mpg and high around 53mpg (usually when running with or against a headwind) but most of the time my mileage is around 59mpg, and that 59mpg seems to remain fairly constant regardless whether it's rolling down a hwy at 65mph or putting along backroads at 40mph. (and although I live in a large city, almost none of my riding is in city traffic as I live on the urban fringe).

I was getting around 38-40 mpg strictly riding in NYC. It was like 55 mpg on the highway.

There it is. Turns out the faster you go the worse fuel economy gets. While this chart is noted for cars--same thing for motorcycles. https://www.fueleconomy.gov/feg/driveHabits.jsp

Go slower, gear down the front tooth, and/or work on the aerodynamics if you want better mpg. Or fuel up more.

I'll add that the TR650 is worse at higher speeds than other motorcycles. If I'm cruising day-after-day with my friend on a GS800 we're getting within 1-2 mpg of each other when we're doing 55-60. Bump up to 75-80 and I get 5 mpg less-probably due to higher RPM that the thumper 650 is not as fond of.

I was getting 56 mpg with a booster plug installed before the recall was done. I'm now getting about 54 mpg after the recall. Well worth the 2mpg, the bike runs the way it should have when I bought it. Best was 64 mpg, never under 50. So, has anybody connected their booster plug up after the recall?