I have a Key West and a Honda.
Was having problems with the Key West.
Cleaned the carb on the Key West, replaced the fuel & vacuum lines and spark plug.
Got the highest octane gas in the can, put in the recommended additives.
Did an 82 mile round trip, very pleasant ride.
Two days later, dang thing is NOT running smoothly. Cannot get it going as fast as it used to. About ten MPH slower!
Wants to stall out if the throttle is full open.
I put the SAME gas in the OTHER scooter, the Honda metropolitan, and it hums along like a little champ.
So, what's the Forum's advice on this Key West situation?