Hi all a question if i may please i have a T5 Classic and have never had any real problems to shout about but over the last few days it has been very tempremental i will try to explain to the best of my abilities she starts first kick no problem but when she is going she seems to stutter at a certain power in each gear 1,2,3 and 4 like i said normally at the top of each particular gear i thought it may be a spark plug problem so i had it out and replaced with a new one no different then i thought maybe to clean air filter so i did this and replaced still no joy. Im new to all this scooter lark and would like if possible try to sort this out myself ( with the help of you all ) cause im a firm believer in trying to do things myself. The problem really comes to light when im trying to overtake something as i manage to get past just but stuttering all the way !!! if i go through the gears at the bottom of there range she is fine and the problem only then comes when in 4th at high speeds. I hope someone can give me some pointers on this matter and i thank all people in advance who post a reply.