swimmer

Sounds like ambient temperature is a significant factor in the swingarm and FD temperature. When it's really hot outside the swingarm gets hot, when it's cool outside the swingarm gets just warm. Bizarre.

Ambient temp?

After a 40min ride, most on the highway with some slower riding at the end, my swingarm and FD were almost too hot to touch. Guessing 85C maybe. Ambient temperature was 108F/42C. Normal. Running synthetic gear oil that gets changed approximately every 6-7k miles.

So I did end up getting my ECU flashed. Had everything done except lowering the fan temp. He loaded the power commander map created with a bike stock with the exception of a slip on exhaust. Overall the bike runs smoother and with a couple of tanks of gas gone through it there seems to be no decrease in mpg with normal commuting. Power delivery is much more linear coming out of lower rpm second gear corners for example instead a feeling flat until the rpms get around 6k. Also the acceleration coming out of those same corners feels greater and the graining on the sides of my tires confirm this. A little more sliding going on. Acceleration at highway speeds, from say 60mph in 6th gear is also smoother and quicker. Overall the performance gains are not huge but the general riding characteristics are improved enough to make this a worthwhile purchase IMO.

How many bars are showing up on your temperature display? If it's 3 or less you don't have an over heating problem.

I regularly ride in temperatures above 110f (43c) and find the VFR1200 to be best motorcycle I've ever had in terms of heat management.

That’s interesting. Over my nearly 300 fill ups I have found the fuel gauge to be very repeatable. My average tank range is right at 205 miles, so I am used to running my tank low. The low fuel warning comes on at .8 gallons, or about 3L. I believe it also states this in the manual and is independent of anything do with range or miles remaining. The farthest I have gone before getting the low fuel warning was a bit over 206 miles IIRC. I can confidently run down to .4 or .3 gallons remaining. I don’t think I have ever put more than about 4.5 gallons in it. Side stand fill up to the plate thing. I think I usually get about 80 miles or so before the first bar drops off the gauge. Your resistance measurements suggest I could stretch my range a bit more beyond the .2 or .1 gallons remaining but I don’t think I’ll risk it.

disregard, found it here. https://www.vfrdiscussion.com/index.php?/forums/topic/77324-2013-vfr-1200f-dyno-runs/&_fromLogin=1

Does anyone have or know where I can find a dyno chart for a 2012+ bike? Ideally with a 2nd gear run. A before and after Guhl flash would be best though I am guessing that post flash results are the same for all years, and I've seen the 2010 post flash.

OP never posted about what he found, though the thread title seems to have changed. @HispanicSlammer, did you find the cause?

This is surprising since the Guhl flash is supposed to eliminate the power restrictions in 1St and 2ND gear which the 2012 also has as far as I know.

Even under hard acceleration you feel both bikes are similarly fast?

FWIW, if the ECU has been flashed it will have a Guhl sticker on it I believe. Just have to lift the tank in the font to see. Post a pic of the bike when you get it.

So I am trying to decide whether or not to get my ECU flashed by Guhl. I am at 55k miles on my bike. The front and rear suspension have been done, cruise control added, and running an Arrow exhaust. Otherwise I am happy enough with the bike to put 15-18k miles on every year and still have no interest in replacing it. I also have a DS bike. So, for those that have had the reflash done, given that I am pretty happy with the bike as is, do you think the changes in the ECU improve riding pleasure enough that it is worth my $375? I would not get the fan-on temp lowered, I would only be interested in removing the performance limiters and hopefully beyond the extra performance this might also improve any shortcomings in normal riding/fueling behavior.

Love the white fairing.