I need help

Good day, I have tried to contact your company on various occasions to try and get help with my motomia milano, 2012 model. I purchased in Walkerville and from inception have found the bike very heavy on petrol, I have measured and fou d it to be 4.62ltrs/100km, and according to your adverts this is almost double of what it should be.<br> I found the air mixture solenoid not to be working and have replaced. <br> My bikes top speed on a downhill is 90kph tops and it seems to hold back and jib.<br> I have checked and this seems to be a common complaint on your scooters.<br> My big question is can somebody please help me with the correct jetting for high altitude, my bike currently has a 108 main jet and I am not sure whether to go up or down, some sites say fit a 115 others say fit a 102,<br> Is it possible for somebody to please help me.<br> I was given a name, Raymond Meyer and I e mailed him at [Email Removed] nobody has bothered to respond