How reliable is a yamaha TRI-Z ?

[sx250heath]

I have wanted a race trike for a while now and found a decent trade for a 1986 (I think it is white and red) TRI-Z :Bounce:lock: so i have a few questions so here they go.
How reliable is a yamaha TRI-Z ?
How hard are parts to find?
How hard are they to work on (better then the KDX that is part of the trade)?
How hard are they to rebuild (This one is a bit of a basket case)?
How good of trail machine are they?

[Eric250R]

As reliable as anything else as long as you maintain them. Parts aren't hard to find. No harder to work on than any other 2 stroke. refer to last statement. Good trail machines, 2 strokes in general are not the best choice for trial riding but the Z has good bottom end power so a little easier to ride.

[sx250heath]

I have a 250SX for most trail needs but i would like to trail ride it every mow and then when i really want my buddy's dust lol.