After warm missing and backfiring - kawasaki Motorcycles

1320 is a ignition problem. This will cause a 0325 code. Check the coil/s, This is the most common problem.

did you foul the plugs , this is something that happens all the time when you have a hand choke on something , when it gets cold out you are going to need more choke, the best thing to do when it is cold is to warm it up do not just take off because you always leave the choke on and foul the plugs, warm it up leave it alone , do not fix something that is not broke

if you have a automatic choke get it checked and make sure its working properlly, it might be staying on wich means the bik will not start or run when it warm

check for loose, cracked or disconnected vacuumn lines or connectors that are missing a vacunmn line.

You need to test the catalytic converter, these were a common problem. You can do this by removing the oxygen sensor in front of the cat and driving it. It will be noisy, but the open hole will allow excessive back pressure to escape and it will drive better if the exhaust is restricted.

I would say it is a faulty engine temp or Air temp sensor,

Check for burnt intake/exhaust valves. Sounds like you have one or more not sealing correctly. Could possibly be a worn out distributor as well.

sounds like a timing issue. check to see if the sheer key is damaged under the flywheel.

I'M not a pro but bro you need to check your dist cap and rotor botton and timing cap can be loose all that.

PEACE AND LOVE BRO.