What to look for when purchasing used Dolmar 7900?

[SawPonder]

Anything specific that I should be looking for when looking a used 7900 over, pre-purchase? I’m driving a good ways to see the guy. He sent me a message wanting to trade for 266xp. I think his is worth more trade value and I told him but he doesn’t seem to care. I’ll obviously look at piston through exhaust port, but anything else that is a potential problem-area?

 

[buzz sawyer]

I bought one supposedly in good condition on ebay. The clutch-side bearing was loose in the case. I had to replace that side of the case. You could feel the movement with the chain removed.