My frined has a Tierra Pro, most people probably have NOT heard of them. They had a PTO and manual clutch. Slow as a tank and weighed more!
I am looking for pics of this beast, I really want pics of a MODDED one!

 

They are very rare. Made in 87 and 88 I believe. Still worth money if in good condition and you have implements for it. About 35mhp topend. You could lock or unlock the rearend. A friend used to have one, but sorry I have no pictures. Yamaha had a good idea, it was only too soon for its time.