$500 would be a good offer. As long as the compression is good, buy it. Whether it has major problems or not doesn't matter... a good running engine will go for $500 EASY so you can't lose money.
1996 Arctic cat ZR 580- 6 inch risers, C+A powder skis, 99 ZR's front suspension, freshly rebuilt engine
1992 Ski doo mach 1 617cc (the beast)
Die hard polaris anti-fanatic!
Do the snow dance with me!!! We don't get enough in Vermont!
And God said: "Let there be snow."