Try our new info resource - "Aladdin's Cave" (Main menu)Just added a separate link to Ash's Dropbox thread (shortcut)
I find a lot of good info on this site then when i have the number David Silver usually has what i need..https://www.cmsnl.com/honda-cb750k5-four-1975-usa_model483/partslist/#.X-SXdVX7QdV