Ok price for a core/project cylinder that will be sent in for a fresh bore and piston.
Using "as is"? I wouldn't. This looks like another cylinder that has been laying around on a garage shelf somewhere, that somebody ran a ball hone through, so they can sell it as "ready to go" to someone un-knowing.
A piston doesn't just get honed, and then a piston slapped in. It doesn't work that way.
Have you thought of taking the funds you were going to spend on this cylinder and applying it to the on on your blaster now? I bet it would be a safer bet.
It all depends what your plans are.
Obviously used parts aren't perfect, so here are a few other things to look for...
One of the exhaust stud threads looks almost completely stripped out. How are all the other threads...
reed cage threads, cylinder head threads, etc?
How is the base of the cylinder? Did someone pry between the base of the cylinder and engine case with two screw drivers to get the cylinder off? It looks ok, but is kind of extra bright in the flash photo.
Not the greatest photo's, but it looks like there is no port chamfering which is really bad.
jus_me is also correct... you need to make sure the Y1 logo is there, otherwise this could be another Chinese cylinder with a porous casting and sand occlusions. It looks like a well used factory Yamaha cylinder to me, but check to be sure.
Hope this helps.