The YZ125H would have to be 1 of the least desirable
vintage bikes there is and it falls into PRE85 where it
would be uncompetitive unless riden by a very good rider.
The previous G model is more desirable and they sell for very
little, as Mont has stated being a little 125 theres only the
fun factor. You state yours is a proven race winner, who was
riding it surely not you, was it a hired youg gun
. In 1981
the Suzuki RM125X was by far the best 125. I spotted yours
for sale on the Heaven site, your being very optimistic asking
3.5k and is that a painted tank gone wrong
looks ugly.
GEORGE