In 2001 I bought a new standard and I had problems getting
it started when it was cold or had been sitting for a while.
I didn't realize that when putting the choke on it seemed like
it was fully on but it wasn't. The last 1/2 inch or so is where
it does the deed and to me it feels like I am fixing to
break it but never does. I have a 99 and 01 standard now
and they are exactly the same. With full choke or enrichment
valve as it is called all of them cranked pretty quick and
after a few seconds with no throttle will idle around 1800
to 2000 until I take the choke off. Probably not your problem
but in 01 it surprised me. I made a video of my 99 just after
startup working the choke lever showing that it does nothing
until that last bit.
https://youtu.be/nlKCfEVNwXQ