help please???? I have my 2005 model aprilia sr50 r has bin working fine for like 9 month until one day I went out to the shop and at the time I went out it was working mint like it normally dos I came back home and then went to go back out tried starting it. It did start but when you go to put the rev's on it boggs out it did run though and went like 40 mph witch is not good for this scooter as it dose about 55 60 mph I have cleaned the carb twice also chaged the spark plug after I did this I went out to try see if I had fixed the problem but it was still doing the same thing blogging wen I putt rev's on and then all of a sudden it just cut out and it wont start now it dose wants to just wont PLEASE HELP THANK YOU