RE: First 4-stroke engine. Help?
Morten,
You probably have gotten more advice than you wanted or needed. It just depends on what kind of pilot you want to be. There are the old school guys that get a new engine, through away the box and instructions, screw on a prop, bolt it to a plane, tune it up by ear and go fly. There are guys that break the engine in on a test stand, perfectly balance a prop, count how many tank fulls that have been ran through the engine, tune it up with a tach, and can give you every detail and number you could think of. Both are right and both have a great time flying their planes.
So, the best advice is to be the kind of pilot you want to be. Again, you have gotten all kinds of great advice from many perspectives. If you want to be the technical guy, old school guy or somewhere in between, just be the one that works for you and have fun!
Brad