[bambudist]

There is a coupling with a small cable inside that connects the speedo to the tranny. It is on the right rear part of the tranny and is a metal elbow looking thing. If it breaks, which mine did, the transmission wont shift out of first.

In otherwords, the speedo tells the tranny to shift. If the speedo cable breaks, no shift. Easy to fix, if you know what to look for.