[21CRF150]

Bike has 0.7 hrs ran great after warm up the first two rides, now will only run on choke. Shut choke off stalls can not keep running with the throttle, while running on choke header pipe got red. Checked all jets on carb seem to be clean and clear. Any suggestions?

[Aussiecrf230]

Hi 21CRF150 and welcome to the site.
Considering how new your bike is maybe a trip back to the dealer is in order.

I assume the bike is standard and unmodified.

It sounds like you have a large air leak or a very plugged idle jet.
Has the fuel screw been altered at all since your initial rides.
I would also check if it is still in there as well. Seen them fall out before.

Check fuel supply is getting to the carby as that maybe the cause of it running so lean.

Was the header a dull red or a bright red?
The above is just a few basic things to check.

Let us know how you go.