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If its in the middle tunnel above fuel pump, its the sidestand bypass.

         That is absolutely where it is. You have piqued my curiosity. Can you elaborate on this side stand bypass? My assumption is that what you're saying is that I can unplug the side stand sensor, and connect that plug with the orphan plug, which would then allow me to start the bike, and then put the side stand back down, while I run back into the house to grab whatever random things I happened to forget, and all the while, the bike continues to preheat the engine... correct?

             2010 Kymco xcitingR 500i...
  - Warm start...
Fires right off, idles fine, runs smooth, no issues. After a minute, or two, it cuts out, and dies. Starts right back up without issue, but will now only idle 10-20 seconds, and then dies. Starts right back up, with no issue. I can do this all day long, but won't idle continuously.
  - At normal operating temperature, bike runs smooth, everything is great, unless I slow down enough to turn onto a side road, or stop for any reason, then it cuts out and dies. Will start right back up with no issue, and run just fine.
 -  Somewhere around 15-20 minutes of riding at normal operating temp... normal riding, just cruising along at, or maybe + 5mph over speed limit... I live in South Carolina, so it's mostly flat with no big hills, no heavy acceleration...but the bike starts acting as though it's had a few drinks. Usually starts with a hiccup, slurring it's words just a little. Then there's a slightly noticable loss in power especially noticeable at WOT. Temp. is normal, (according to gauge) and the CEL is functional, but not illuminated. From here, about every 30 seconds, it's like the bike has had a few more drinks, until it (the bike) has become completely sloshed, stumbling around like a drunken idiot, the walking (rolling) dead, and just barely functional. At this point it's on life support, and I'm just able to keep it "alive" through continuos cycling of the throttle from 50% - WOT in an effort to get to a spot where I can get off the road. At this point, I can cycle the key to the off position then back on, and the bike will start right back up and function mostly as normal, but feels as though it's being held back a bit, and after 3-5 minutes, it's back on life support again. Same as before...shut it off, then back on. Starts right up and functions (mostly) normal. I can do this maybe 3 more times. Starting is slightly more hesitant, but still ok, however art this point it will not idle at 0% throttle for any length of time, and there is definite lack of power. Shut the bike off, have a smoke, scroll through Google, while hoping to stumble across the miracle solution... After around 15 minutes, bike starts fine, runs ok, but is back to just feeling like it's being held back. Town is about 7 miles from home, so now that I'm running again, I'm headed home. I usually have no seriois issues until about halfway down the 3/4 mile home stretch, and from there I'm just barely making it to the neighbor's house across the road. Shut the bike off, and shoot the sh*t for minimum of 15 minutes, then I can get back on , starts as normal, and runs well enough to get me up the 1/4 mile long uphill driveway. If I let the bike sit for 1-2 hours, it's like the first start on a warm morning again.
  - Here's what I have tried, to this point: saying kind things, sweet talk, using a calm tone, without using any 4 letter words when talking to the bike. I have checked oil and water levels, cleaned and checked the function of the thermostat, checked all electrical connections, reset the ECU, reset the TPS and MAF, (as per Kymco online service manual) adjusted valves, neg terminal disconnect and then reconnect after 1-2 hours, checked and cleaned spark plug, cleaned the air filter, ran without air filter, checked the throttle body, checked the injector, checked the fuel pump, ran 2 tanks of fuel with Seafoam, it feels as though there's more I'm leaving out, that I can't think of, but at this point, I have had 0% success rate.
  - Other things I have tried that offered the same 0% success results: 
Scratching my head, talking dirty, (in a nice and playful manner... I'm no monster!) throwing things (at the ground, I'm not a violent person, either) yelling, making threats, and talking meanly to the bike while using many 4 letter words, (as a monster would do, because...it was worth a shot, and also it made me angry) I also kicked and threw things at the bike (in a violent, raging, madman-like fashion, because...why not...nothing else has worked, and also, it made me angry again). I'm better now, and I have said my apologies, but we are still at 0% success, and I'm tempted, but also trying to avoid spending $300 on a diagnostic tool. Any input or assistance is greatly appreciated, whether in the form of fixing the bike issue, or even if it's just some anger management tips.
            TIA - the lightly cracked (maybe), slightly damaged (probably), but (certainly) still not broken... UnbreakableCracker