i had a 99 techno it was red and silver with dark grey front mud flap sensor was on the head i now have a 2005 rev 3 and its at the bottom of rad . to fill the rev 3 you remove the right (as your looking at the bike from the front) black plug on the frame near the headtube if its a techno the rad has a cap to fill it this may help
http://www.trialsport.com.au/beta/documents.htm
http://www.bcdirtbikes.com/Everything-Else...hno-Manual.html