whats the proper gas/oil mixture ?

If you are running reg. 2 cycle oil 32 to 1 is ok if you like the results. If you go to 50 to 1 it would be best to go with the best synthetic oil for air cooled engines you can find.

You can't go wrong with 32:1. You also have some folks who say the same about running 100:1 on their bikes using optipube oil.

optipube?
I thought this was a family oriented forum!

I recommend 20-1 for break in and 32-1 thereafter if you are using regular dino oil.
Synthetics I run at 32-1 too.

Opti2 can be run at 100-1 due to it's unique formulation. There are alot of folks that will absolutely not trust such a thin oil ratio like that and like to scoff at such a ratio.

In the end, run what you feel comfortable with, and never mix it thinner than what the oil manufacturer recommends.

I breakin with 24:1 dino oil, then switch to Red Line synthetic running at 50:1