I think it's great that you are wanting to learn how to service your Bavaria by yourself. It's always been a fun and rewarding part of the hobby for me to learn and do. However, when you are starting from scratch in the learning process (which it sounds like you may be) it is best to work with and learn from somebody who already has the expertise you want. It is possible to learn from a manual, but there will be lots of additional questions, trial and error, and the lack of a thorough explanation of why things are done the way they are. There is also the possibility of breaking more than you fix
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Find or make a friend that has the needed experience and technical skills to necessary for the tasks you want to learn how to perform. Most "car guys" are glad to help and actually get a charge out of helping others along in their learning. Another alternative is to find a professional mechanic that knows these old cars (points ignition and carburetors) that will let you work alongside him while he explains what he is doing and why and will let you help perform the tasks.
Did you get the dwell and timing set properly using a dwell meter and timing light ?. There is no point adjusting carburation if the ignition isn't set correctly. Ignition first then carburation is always the rule.
I agree with E3_UK. Most carburetor problems turn out to be ignition problems. If the car ran cool and didn't bog during acceleration, then the problems probably have something to do with your tune up.
Buy a dwell meter. They are about $40 and can help with other electrical problem diagnosis too. You've already saved more than that by not needing the gasket set, head surfacing and other expenses that would have been required to remove the head. You will save even more by not throwing new parts at your overheating problem (again, if it didn't overheat before the tune up, the water pump and thermostat probably haven't coincidently failed).
Set the point gap with your new dwell meter. This is an iterative process and can be somewhat frustrating, but it is next to impossible to gap the points correctly with a feeler gauge.
Time the engine correctly. Both the overheating and bog can be attributed to timing problems. Warm it up. Disconnect and plug the carb side of the vacuum lines at the distributor. Turn the idle screw until you have 1700 RPM on your new dwell meter. Set the timing at 22 degrees advance using the proper mark on the flywheel while shining the timing strobe through the "window" in the bellhousing. Reset the idle screw to the recommended idle speed with the vacuum hoses reconnected.
