I just put a new, low mileage motor into my 95 GSR. The old one had issues with a little bit of black soot coming out the tailpipe. I figure that this is probably either the piston rings or, somehow, the valves, since black smoke means burning fuel. Now, with this in mind, what is this motor worth? I wanted to keep it to turn into my project motor but that is not feasible at this time. I was thinking $2500-2750 since it needs a rebuild. Is this too high? Too low? I appreciate any honest answers, and yes, I am selling the motor, I just need to know what to sell it for.