Sry, I thought he said, "The scooter is a 2001 model so out of warranty." in post #5 but I could be wrong.
IF it really is a two zero zero one model, there's a fine chance the crankcase seals are less than optimal.
Always a Huge benefit to have just a few more details when remote diagnosing. :-)
Oh well, back to the goats.
redk