What does this button do???

hello. I was just wondering what this button does. We havent been able to figure anything out.
It is the little black button next to the shifter. thanks for any help. Chris---

http://i32.photobucket.com/albums/d42/yamaha405/Mar24_0002.jpg
http://i32.photobucket.com/albums/d42/yamaha405/Mar24_0001.jpg

i don't have it but just did a quick search and found this on another forum somewhere...
 
"ECT -- Electronically controlled transmission. Essentially you have a two-mode transmission, with different shift points. Normal mode is designed for decent starts and good fuel economy, with low RPM shift points. Power mode gives you harder accelertion by shifting closer to the redline, but reduces fuel economy. The ECT switch changes the mode."

Awesome! Thanks for the quick and informative reply, i appriciate that very much. take care. Chris---

this "power" button is to help when ur towing heavy items giving it the extra boost of power to help. my dads 89 toyo pickup had the same thing and it kicked out alot more power