My bike was subject to this recall. I'm in Canada and because of that am told the bike is to Euro spec - so I'd expect your bike is (was) affected also (depending on year). Some notes from a related post with applicable VIN ranges:
Recall Notice (11/19/99)
"The following items require immediate attention:
1. The sealing plugs in the cylinder head can work loose allowing coolant to escape. In extreme cases the engine could suddenly lose all coolant. (Affected VIN number range is ZA21803 to ZA22694).
2. Also, the clip that secures the oil thermostat can work loose. Under some circumstances, engine oil can leak and find its way to the rear wheel, which in turn can place your safety at risk. (Affected VIN number range is ZA20000 to ZA34226)."
Hope this helps.