You bought the bike at Bert's correct? Take the bike back to Bert's instead. They know what they are doing there. Talk to the salesperson, ask him/her to get involved. I do marketing for various dealers including a few Kymco dealers, trust me, Kymco will do the best they can to assist the dealer in repairing your bike.
Admittedly I should have left the bike there but I tried once already and frankly driving up every weekend was getting old. When I expressed that the bike wasn't right to the adviser one of the comments I got was "the bike is still breaking in". That tells me my concerns weren't taken seriously. They even had another they could have checked it against but didn't. Mind you Bert's is an hour drive each way from where I live. My response from Kymco USA has been thus far disappointing. When it was found that grease had gotten on the belt the reps (not the normal one) response was that they could just clean the grease off the belt and it would be fine because it won't absorb the grease. I find that statement mind boggling because the belt is not meant to have grease/oil on it. Oil/grease does one of two things to a belt, it either shrinks/hardens or softens/swells it. Not to mention the exposed reinforcement fibers that can absorb it.
I've heard from others that say they aren't shy about putting parts on bike yet they've offered me nothing. When I sent an email to them today explaining that the situation was simple if there was more grease coming out to locate it's source, fix it, degrease everything and put a new belt on or if there was no more grease then to degrease it again and replace the belt his response was "You seem to be simplifying the proper course of action but if you assumptions are correct, I would tend to agree with most of your assessment". Not sure how you can get much simpler than a mechanical CVT, maybe a pair of sprockets and a chain. On one hand they say they are willing to put parts in to fix it yet they haven't put a single one in.
I rode it over to Riverside and the guy I spoke to took note of everything (also provided him with a letter of the history and issues). Hopefully I'll have better luck with them. As it is the bike is just unsafe as there is little confidence in making through an intersection with it slipping. Once at speed it's ok, stop and go traffic is bad too especially when the bike starts vibrating badly at 10-15 mph on/off with throttle. The worst part in all this is I can fix it myself but that I shouldn't have to. Alright enough for now, sigh.