We had many years a Kymco Agility 125 from 2004, and was driving very good and economical. But we have sold it. Now we have bougt a new Kymco Agility City 125 from 2017. On the old one we could both sitting on the scooter driving uphill, but with the new one it isn't possible. Halfway the hill the scooter is stopping, and I smell some burning air. I had the gas throttle full open, but is seems it has not enough power to get us both uphill on the scooter. The motor makes enough rpm, but the scooter stay still. What is going on? And how can this problem be solved? Go back to the store where we bought it? The scooter has driving only 900 km!!!