Tobyxj, there is info to test the O2 sensor on the link I posted earlier. You need to figure out all your vacuum lines, and go through and check things methodically til you get some answers. If you lived closer I would come help you. Orderly troubleshooting is an acquired skill.

I got it running the back of the TB the line to map sensor where it goes into TB little hose was crimped shut so map wasnt picking up any vac in turn killing my motor thanks for all the help guys

mine did the same thing last weekend on a trail ride and i reached up and unplugged my o2 sensor and it ran better than when i got it

Good work!