sounds the same problems i had on mine, dating back to 3,4 years ago....your might have different, but i love to share with you what i did for mine... a slow gas leaking was causing by a small cracked almost invisible of overfill tube located at center of carb bowl...backfire issue could be unclean carb, or wrong turns of airscrew adjustment.....locate in the 1st picture of herehttp://scootdawg.proboards.com/thread/3 ... -get-speed
Thank you, this is all great info.
I will know more once I crack the scooter in two and get at the carb.
I suspect a good cleaning of the carb and the renewal and correct repositioning of all hoses will go far in getting this scoot to perform well again !!
A bad day working on my scooter is better than a good day at work ??