IIRC you’ve got a '76 CB750 right?
http://www.denniskirk.com/jsp/product_catalog/MMYSkuDisplay.jsp;jsessionid=ANBO10MDEM5MJLA0WTKSM4VMDK0NCIV0?leafCatId=40802&catId=408&store=Main&mmyId=7718
Surprisingly I don’t see either lever there.