I have a CPI Bullet and it is a 90cc.I got it from a friend of mine and it ran when i got it but then we loaded it up and i got it home and it would start for a sec and then it would just die.I got the carb adjusted to where it will run but it still isn't great. I either have idle with the choke closed (and it bogs down at full throttle,( like it is getting too much fuel) or I can get it to scream at full throttle with the choke open (and it doesn't want to idle).

Please let me know if u have any advice.