RodneyCB750K1979's compression numbers

Posted by 750K8 on Jul 02, 2013; 9:05pm
URL: http://vintage-and-classic-hondas.81.s1.nabble.com/RodneyCB750K1979-s-compression-numbers-tp4043161.html

I got off the phone today with RodneyCB750K1979, and he noted that his compression is around 130PSI on all cylinders.

I had always thought that fresh CB750s should be pushing 180-190PSI, +/- 15.

I thought I would start a thread here to get some insight on this. Is this expected until the engine is "broke in"? Could it be that the valves need further adjustment? Should the engine be reading full compression right off the bat?

I also ask because he will be handling my CB450 engine, so I wanted to be enlightened on expectations.