Dies without choke and kills battery

[Gaiare]

Hey guys. So I had the bike checked and the multimeter reading was right on. Put in a battery and its been holding perfectly fine. Must have just been a crappy coincidence.

Thanks a ton for teaching me the choke thing. Starts and actually idles way better now. Helped a lot.

I have gotten concerned about this oil light thing. It comes on for a couple seconds from time to time. Oil level is right in between the markers and was measured out to manual specification when being changed. Should I get my oil pressure checked? Should I maybe put a thicker oil in now that it's cold?

The bike oil level was over filled when I got it and was ridden that way briefly before I changed the oil and filter. Could that somehow impact my oil light?

Again. Thank you all for all the help.