220V Compressor Wiring

I just got a new belt drive air compressor to help keep up with my new, bigger shop. The compressor is wired for 110V, but everything I've read says it can also be made to run 220V. The problem is I can't find any resources that show how this is done. The wiring diagram on the side doesn't show how and the manufacturer (Marathon) doesn't have this model listed on their website. Based on what I've seen from other 2HP motors that Marathon produces, I think I just have to isolate the yellow wire pictured. Anyone have experience with this? Hate to blow up the motor on a new compressor.

 

Nevermind. Figured it out. 110V only.

 

Most all dual voltage motors Have the wire schematic for changing voltage. Glued to the motor.