CB750K7 Cafe Racer Build

Doctor Jones

Been Around the Block
Hi all.

Here I have a stock CB750K7 (UK Model) that looks a whole lot better than it really is. I had a mind to restore the bike but the more I looked at it, the more I was drawn to stripping it and building my take on a Cafe Racer. I'll try to be sympathetic and, wherever possible, keep it Honda. If parts are beyond refurb' then they'll be replaced. To add a little 'period' aging to the bike I'll use accents to take it back to that era we all aspire to. That said, it's a CB750 SOHC and I'd like to think its origin would be recognisable when we get to the end. If I rant because I've been let down by a supplier then please excuse me. If you have any questions or comments, both positive and negative, I'm happy to listen. If I can help with anything technical just ask but if I don't know I won't BS you. I hope the enjoyment I get while doing this kind of project shines through.

Anyway, here goes nothin'......
 

Attachments

  • Pre-strip.jpg
    Pre-strip.jpg
    238.5 KB · Views: 416
  • The first cut is the deepest.jpg
    The first cut is the deepest.jpg
    239 KB · Views: 2,682
  • Previous mechanic wang.jpg
    Previous mechanic wang.jpg
    235.5 KB · Views: 2,605
  • Same mechanic I pressume?.jpg
    Same mechanic I pressume?.jpg
    179.2 KB · Views: 2,617
Frame is stripped and next we'll start work on the motor.
 

Attachments

  • Picked to the bone.jpg
    Picked to the bone.jpg
    223 KB · Views: 2,306
  • Which one went where?.jpg
    Which one went where?.jpg
    226.8 KB · Views: 2,359
  • Dr. H. Fastitious as ever.jpg
    Dr. H. Fastitious as ever.jpg
    219.7 KB · Views: 2,372
  • Dr. Hofmann begins surgury.jpg
    Dr. Hofmann begins surgury.jpg
    203.2 KB · Views: 2,277
Bottom end is nice and tight with pretty low millage so that'll be left alone. Everything else will be re-built.
 

Attachments

  • Exhaust stud removal - always tricky.jpg
    Exhaust stud removal - always tricky.jpg
    220.7 KB · Views: 2,285
  • Engine pre-strip.jpg
    Engine pre-strip.jpg
    217 KB · Views: 355
  • What's the hammer for?.jpg
    What's the hammer for?.jpg
    251.3 KB · Views: 2,300
  • Off with it's head.jpg
    Off with it's head.jpg
    229.2 KB · Views: 2,251
Nice mate, I'm interested in this already :eek: I see you have an accomplice (taking pic's) do you, like me have the occasional visit wife? ;) Keep up with the posts I look forward to your progress
 
Hi andycafe. Dr. H is my accomplice and wing-man. He's just better with a spanner than a camera. Ride safe. Dr. J.
 
I'll detail the head work for a while. I hope I don't overdo it and it gets boring. Let me know if there is too much detail. Thanks. :-X
 

Attachments

  • Outer spring check.jpg
    Outer spring check.jpg
    532.9 KB · Views: 342
  • Inner spring check.jpg
    Inner spring check.jpg
    584.6 KB · Views: 335
  • Cam assembly.jpg
    Cam assembly.jpg
    207.7 KB · Views: 2,275
  • Pretty clean oil-always a good sign.png
    Pretty clean oil-always a good sign.png
    1.3 MB · Views: 2,310
Many hours spent cleaning and prepping the crankcases but I hope it'll make a difference.
 

Attachments

  • Masked and ready to paint.jpg
    Masked and ready to paint.jpg
    331.4 KB · Views: 356
  • 16 hours of prep..jpg
    16 hours of prep..jpg
    389 KB · Views: 354
  • Dirty cases but clean oil.jpg
    Dirty cases but clean oil.jpg
    493.6 KB · Views: 330
  • After 37 years it could do with a hug.jpg
    After 37 years it could do with a hug.jpg
    371.5 KB · Views: 364
Here's one I prepared earlier.
 

Attachments

  • Prep 1.jpg
    Prep 1.jpg
    410.6 KB · Views: 290
  • Prep 3.jpg
    Prep 3.jpg
    360.9 KB · Views: 296
  • Prep 4.jpg
    Prep 4.jpg
    346 KB · Views: 297
  • Hi-ho, Silver .jpg
    Hi-ho, Silver .jpg
    345.1 KB · Views: 292
I will be doing a big engine cleaning and prep like yours very soon...I think mine is dirtier to start with though...definitely not looking forward to it.
 
If I could have done one thing differently before I stripped this bike, I would have steam-cleaned the motor. Let's face it, what could possibly hurt it (don't stick it up anywhere dainty of course)? I kid-you-not, it took 16 hours to clean and prep that motor ready for paint. Now, if you need to get out of the house for that amount of time....well, that's a different story.
Make sure it is so clean you can lick it before you start rattling those paint cans. You could spray brake cleaner all over it once you've done the hard bit but that stuff is so expensive I'd take my time and wipe it over with cellulose thinner.......twice! Careful what you do with the rags afterwards, though.
 
This is for Salt Lake: To ease the pain just get 12 of your favourite albums together and press >PLAY. Me, I started with Stevie Ray Vaughan.
 
Doctor Jones said:
This is for Salt Lake: To ease the pain just get 12 of your favourite albums together and press >PLAY. Me, I started with Stevie Ray Vaughan.

LOL thats sound advice right there. I don't think I am going to go quite as indepth as you however, I think I want a little more of a weathered look
 
Think I'll go for shiney with the bike as I have the weathered look myself! Now, where did I put my face cream?
 
Back
Top Bottom