How do i fix the tune on my bike?

Either channel 9 is not transmitting, or the auto tuning circuit is fubar and for some reason not picking up that frequency. U can have it fixed, price permitting. or simply get an external tuner to replace the on board tuner that is not working properly.

Check and replace its main system control memory IC. If this IC is faulty, auto tuning will not work, or, the TV will store any received channels. If the TV do not tune into channels too, the AGC voltage to its tuner, and tuner itself should be checked.

Was it running decent before you done the work on it.?

Replace the front o2 sensor.

Have you sync the carbs lately? Remove the plugs and read them for fuel mixture problems. replace if they are wet or fouled ---Check for vacuum leaks around the carb boots. having to run with choke indicates a pilot circuit in the carbs is clogged, or one of the above.

No you are confusing the idle screw (a thumb-screw) with the air/mixture screws, these are turned inwards (clockwise) until they lightly seat & then back out the specified amount
You should have the bike tuned by a professional who should include synchronising the carbs, this will let the engine run more smoothly, idle at lower revs ,increase speed & all-round performance speed

Ride safe
Bike-Doc
Please mark this as very helpful (if it has been!!)

things to look at would be the fuel filter, catalytic converter, or a vacuum leak to one or more sensors. hope this will help!!!

try to clean the valve

Since it ran fine before you "fixed" it, go back over the things you changed. Put the old spark plugs back in it. Double check all spark plug wires and ignition connections. Put the bike in a dark area and run it at night, can you see any arcing anywhere?

either the tps is out of parameters or you need to adjust the idle up a bit