I own this scooter since the beginning of January 2014 and since then I have been concerned with the way it behaves when I ask for a little power when negotiating sharp corners or turning through roundabouts ON WET CONDITIONS (Slippery??) "the engine revs like is not engaged and suddenly it does! so the rear wheel gets a burst of unwanted power which makes me feel I am just about loose the bike" this only happens in slow speed situations and my head goes backwards and forwards like saying YES to everybody on the road. Is this a normal on these Scooters, is there any adjustments that can be done to avoid this? Would any body out there be able to advise please. Regards Clem