Re: 1978 CB750A Fuel Problem?

Posted by Re-run on
URL: http://vintage-and-classic-hondas.81.s1.nabble.com/1978-CB750A-Fuel-Problem-tp460680p460684.html

Well a cam should not usually require higher octane as it has nothing to do with compression. I would have to guess your timing is advanced and that would require higher octane depending on how far it was advanced.