The 350 Four is like a good friend, robust and reliable. Soichiro Honda himself considered it his best bike. Early '80s me and my girl did a six weeks trip through Belgium, France, Italy and Greece, totalling 10.000 km. The only problem she encountered - in blazing hot Peloponnesos - was a front brake that got stuck. It was easily freed by a helpful Greek tractor mechanic. Halfway we changed the oil. For the rest no maintenance. On the way back over Swiss and German Autobahns my friend was comfortable following me (on my CB500) at 130 km/h for hours on end.