Upon testing a second tankful of gas... I have to call this experiment of flashing back to factory specs a failure.
This second tank, I did not purposely go slow, or do a steady interstate run - this was a just a casual, routine run around the canyons and nearby High Plains.
Unbelievably, gas mileage now indicates my previous 31.5 mpg has fallen to 29.8 mpg. And now, I am in fact noticing the classic symptoms that prompt a flash in the first place: my cold starts are pretty gnarly now, the motor will cough and spit until it's warm up. There are noticeable hints of surging going on at modest-to-low speeds, the Mode One throttle has certainly become more abrupt, etc, etc
Two Wheel Dynoworks tells me I might as well send the ECU back to them for their normal flashing-for-performance. If the MPG is the same/worse AND
I now have a crappy factory throttle response, their stance is that let's at least get rid of the throttle issues. It makes sense, that's what I will do.
Today I am pulling off the rear tire and install a 41-tooth rear sprocket. That is down 2 teeth from OEM. That is about all I am going to do to increase my range for this upcoming riding season.... I am not getting a larger aux cell. Over next winter, I will look at enlarging the factory's paltry 4.5 gallon fuel tank.
Latest little farkle
: this is the SYKiK TPMS. I've had one on the Tracer since the get-go. A TPMS a critical item when carrying wifey. Wish we had it when we the FJR's rear tire deflated and un-beaded itself, at speed, in July 2019, during an intense Montana rainstorm.
Big believer in these TPMS systems now.