Re: new to the site, need lots of help
i would agree with both of you.
a properly adjusted throttle cable is key to getting it to idle. There should not be any "slop" in the cable you can adjust it both at the carb and at the handle bars don't make it tight just should have a little tension on it.
Then try adjusting the idle screw on the side of the carb turn it in a couple of turns and see if it starts to idle adjust the screw again once it is warmed up.
If no help there make sure your carb is tight on the intake and not leaking air in. also check the intake at the motor to be sure the gasket is sealing.
Just getting it to start is 90% of install the rest is just tinkering until you like how it runs.
Ride it like you stole