OK, I have read all the posts about my 1988 125 Force overheating. I tried all the tricks, replaced waterpump, housing, impeller, thermo, and head gasket. I tried to replace the overpressure switch but there is not one. There is a hole where there should be one but it's plugged from the factory. Can anybody give me any further help? I have the head off right now and I was thinking of new rings but I still do not know why it was overheating, I could not keep my hand on this motor for more than a couple of seconds so I know it did overheat. Thanks for all the great info you guys put out on this site.