2006 LT-Z50 motor help

we bought this last week brand new, and it just doenst seem to run right. At full throttle the motor sounds like the choke is on and it cuts out. It moves the bike along at a slow pace but the motor just sounds horrible. The dealer is closed until tuesday.

Any ideas? Would taking the govenor out of the tranny help? I probably should do that anyways. It just sounds like it has carb problems and you cant make many adjustments on it.

why couldn't the carb be adjusted?

Sounds to me like the clitch restrictor in the tranny. They are very easy to pull out and make a world of diffrence