I bought the factory o2 sensor for like 150$ because my bike came with a slipon and the dude robbed the powercommander out of it so the bike runs pig rich and spits nonstop flames. I cant seem to find the connector for the sensor to plug into. I looked everywhere and tried seeing where the sensor would reach but i cant find a vacant connector... !Pics help also~!

 

If your bike is not a Cali. model it most likely does not have an o2 sensor.What other mods were done?