Need some measurements

[Pshirey]

I’m trying to see if anyone can provide measurements on the seat hinges on a 1977 or 1978 cb750k. I am finishing a basket case K7 that did not have a seat with it. I am actually restoring three SOHCs that I acquired as a package deal. This k7, a k5, which will be a custom job and a k1 which will be as close to stock as possible. I have given up on eBay and cmsn as these hinges for 77 and 78 are hard to find pieces. I can fabricate these hinges but it would be helpful if I knew the correct height of both of the hinges, which are different heights. I need the measurement from the flat side that mounts to seat to the midpoint of the hole the pin fits into. All the other dimensions I can get from the seats mounting bolts and the perches on the frame. I scanned the classifieds but did not see any for sale. If anyone has a spare set, I’m interested. Thanks in advance if anyone has a K7 or access to one and Merry Christmas!

 

[Dano]

I took measurements from the seat pan to the center of each pin hole. Determining the center of each pin hole is somewhat subjective but the measurements are really close

Front is .875
Rear is 1.155

 

[Pshirey]

Thanks Dano! I got rough measurements by mocking up the seat on the frame and measuring from the side. These measurements are within an eighth inch of what I measured. Appreciate the help!