In summary:
1. Remove from frame
2.Remove top cover
3. Separate halves of camshaft at centre
4. Remove end covers
5. Pull left half-camshaft to left and right half to right
NB - Not all details covered here - proceed with care!
Yes it is. But don't get to excited as that is probably not what you have. The following is a list of Honda motorcycles related to, but not a CB77; Honda C77 Honda CL77 Honda Dream CB250 Honda CB250 Nighthawk Honda CB72 Honda CB 72 Superhawk Honda CPY77 Unlike the ultra-rare CB77 these almost exact duplicates are worth very little. I apologize if this upsets you but that's how it is. I know you wanted to be a millionaire, we all did, but it looks just like the other 6-Billion people on this planet you are going to have to find gainful employment.
Robert M. Pirsig rode a 1964 Honda Superhawk CB77 during the trip that led to his popular book Zen and the Art of Motorcycle Maintenance.Although the author's bike is referred to often in the book, the make or model is not noted. However, it can be seen in the photo of the author and his son, on the following link, that was taken during the actual 1968 motorcycle trip the book is based on:http://ww2.usca.edu/ResearchProjects/ProfessorGurr/gallery/Pictures-Robert-Pirsigs-original-1968-trip/aamThe book does refer to his friend's bike, a BMW R60.