ORIGINAL: philreuman
I found the bearings at boca bearings. $25.95 for the set. they are the same bearings for several brands of 80 to 120 engines. I hope they are not needed. I paid 75.00 for the engine and then read the sale again and found I had purchased a known froze up engine. My bad. I hate to have more in a used engine than a new one.
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While I agree that replacing the bearings right off the bat is the smart thing to do, I'm cheap, so I usually try to free them up with WD-40 first. Sometimes, if you work them by hand long enough, you can clear them of the dried castor oil and reuse them. Like I said, it is probably smarter to outright replace them, as Jaka suggests.