The double overhead cam replacement for the old single overhead cam CB750K, perhaps never caught the Honda enthusiasts imagination, like the old K models, shame because in reality they were stronger, more powerful and better engineered, more able to compete with the competition from Kawasaki and Suzuki. The 750F and 900F are handsome engines, ensure they stay that way by fitting genuine Honda gaskets, and avoid unsightly oil mist on the polished engine cases