The Ebay USB to Serial cable came in the mail today. It worked and cost less the $4 shipped. Windows 7 even automagically downloaded the drivers for it.
So I tried the Mori4 map first and holy cow. Whatever the previous owner was using is garbage. The best way I can describe it is the engine is more alive and smoother at the same time.
As soon as I loaded it the idle smoothed out, which i never noticed as being rough before. The biggest difference is below 4k rpm, and the throttle on/off is way smoother. With the old map the exhaust sound was all over the place and the power was too below 4k. Now the bike has a more linear power delivery and the exhaust sound is more linear as well if that makes sense. Before the exhaust sound would come and go at certain points in the rpm range(mostly between 3-4k), and had a rougher tone.
Another change is the coolant temp gauge is quicker to rise when sitting in traffic. But once I get some air flowing again, the needle settles down at just above the bottom of the gauge.
I'm not even sure I want to mess with any of the other maps, but its tempting since some are supposedly done at elevation, (I live at 6.5k), but this map in comparison to the previous owner's map makes the bike a whole new experience, and one for the better. And someone once mentioned to me that a good map tuned for sea level is better then a garbage map tuned at elevation.
I have 2005 era Yosh TRSs.
The factory map with no PC was awful.
The PC 919 map was pretty much the same.
The Erion map was better but still not right.
Then I tried LDH's v4Mori map, after converting it to USB code from the original SP code.
Even my wife, unprompted and not at all any kind of gearhead said "what did you do, it sounds different".
This was at idle as she was getting ready to put on her helmet before hopping on the back.
My custom map is really a variation, the tuner actually telling me my baseline map was so good, and his gains so small, that he'd only charge me half price when I went to pick up the bike after the runs.
My suggestion is that anyone with a twin canned 919 with a PC, is crazy not to at least try the v4Mori map.
I have yet to see or hear back a negative on this map from anyone that has tried it.
Sure, it can be improved upon for other specific cans, but so far I'd have to say one can't go wrong with it no matter what cans one has.
Rickard did say his debaffled stock canned bike used more fuel with the v4Mori map.
Keep in mind he keeps his engine on the boil a fair bit.