Re: Pipes 81 cb750 dohc

Posted by Re-run on Jun 16, 2011; 9:05pm
URL: http://vintage-and-classic-hondas.81.s1.nabble.com/Pipes-81-cb750-dohc-tp3072964p3073908.html

As tools said, rejetting may be needed but I doubt you would burn a valve unless you cut within a few inches of the head.
It is hard to say what jetting may need to be done, if any. Exhaust changes are more flexible than intake changes though, going straight might be enough though.
You might take it in to be welded, brazed. At least till you can get a new exhaust system or slip ons for your headers.