Could a bad head gasket being causing overheating on 1979 goldWing? When I really get on it, it overheats fast. Waterpump good, no coolant loss or water in oil either. would using Blue Devil sealant make rebuild more difficult later? Thanks!
Yes, a bad head gasket can cause overheating. Do you have any other symptoms such as white exhaust smoke? Where are you located? Are you riding in cold weather, hot weather? Is the fan working properly? Is your thermostat working okay? Are there any bubbles in your overfill tank while bike is running? Is the radiator full? Before you rip into the heads, just double check everything to make sure. If you decide that it is a head gasket, try to use a OEM gasket. There is no need to use a sealant of any kind.
Some of our master guru's will come along and ask more questions of you. The more info you can provide the quicker you will get the right answer.
By the way, welcome to the forum. Go to your profile and fill in your location and your garage so we can get as much info as possible until they get our site straightened out on members info. One more thing, how many miles on your bike?