I have an 87 and I can only speak from my experience as most people have different tricks. I compare them to a fine woman... you have know how to talk, pet and treat them just right to get what you want. If you kick it like a 250, you will be there all day, I forgot this once and actually kicked long enough I had crank case oil spewing out of the pipe... Here are my steps for success, this may or may not work for yours:
1) Open the petcock, lean the bike over until fuel drips out of the overflow. (this lets you know there is fuel in the carb.)
2) I crack the throttle a couple times. (2 maybe 3)
3) Open the choke.
4) Roll the kicker over 4 to 8 times... SLOWLY, just a gradual roll over to get fuel in the cylinder and let her know she needs to be thinking about pleasing her master. =)
5) Once I feel she is ready to purr and please I will open the throttle a hair, get the piston on TBC and roll it over a little harder than I did when I was prepping her.
6) Mine will typically fire right up on the first or second kick. Slow and steady is the name of the game here, if you get frustrated and start kicking the hell out of her she will turn off and you are done for awhile.
I would never tell anyone what to run in there bike but I run GP7 32:1 to 40:1 depending on if its in the middle of summer or if I am running the dunes or trails. I like a little more oil for hotter weather, I want to make her internals are nice and lubricated. I hope this helps!!