71 750-K Cafe Project

[oldog]

Hello...new member here. I really love the dependability of the old SOHC Honda. I think I want to build a

750 cafe racer and share some of my different ideas. The past winter months were spent on the engine rebuild and

parts gathering so I'm ready to start gluing her together. Here's some pics...

This is the frame before teardown for sandblasting. A fresh stock rebuild engine is sitting in the background.
I wanted to make the seat/tail section that would use the early 71 stock tail light. thats why it's shaped square at the back. This is only the plug for the fiberglass mold so I have a fair bit to go on this part. I want to fab my own rearsets as well. I like the idea of big blingy brackets. The the white triangles down there are the starting templates.

Heres the right side rearset. 3/8 aluminum plate.

 

[oldog]

Got some more done. Frame painted, engine glued in tight and the right side rears and linkages are done. (I'm using a 76-F kickstarter so it clears the rearsets.

 

[Shooter]

Awesome work. Keep posting progress pix please.

 

[beardking]

That is a downright amazingly clean engine there. Nice, I'll be following along to see the progress.

 

[redlynr]

Awesome stuff!

 

[oldog]

Thank you guys for the interest. It helps to keep things rolling for me!

I got the left rearsets installed today.

 

[Tim]

Those are some seriously nice rearset brackets. Did you machine them yourself? Great use of the rear footpeg mounts.

 

[Ease]

WOW.
you have some serious hours into that bike so far no doubt.
GREAT JOB.
can't wait to see the finished product.

 

[oldog]

Those are some seriously nice rearset brackets. Did you machine them yourself? Great use of the rear footpeg mounts.

I did make the plates. I first made a mock up set out of 3/8 plywood to find the right spot for the pegs and controls. The aluminum plates were cut out and shaped with a drill press, jigsaw, belt sander and a router. Yep, pretty much all woodworking tools.

 

[Tim]

Nice work. How thick is the material? Did you just hammer the bend into each plate?

 

[Kuyarico]

nice job so far. those are some sexy rearsets.

 

[sl8rxlr8r]

Awesome. Those are probably the nicest cb750 rearsets I've ever seen.

 

[oldog]

Nice work. How thick is the material? Did you just hammer the bend into each plate?

I picked up a piece of 3/8 aluminum plate approx. 32" square at a local salvage yard for $20.00.
For the bends, I secured the bracket in a vise with soft jaws and wacked the top of it with a hand sledge and 2x4 block...No Heat.

And thank you for the pos response on how they turned out. I did spend several hrs on them. I honestly figured on a mixed reaction on the large size.

 

[locOleoN]

WOW.. how much to make a set of those for my 1975 cb750f????... seriously!!!. DAMN!!
my right brake is a disc set up!

 

[Fossil]

Thank you guys for the interest. It helps to keep things rolling for me!

I got the left rearsets installed today.

Very clean work. I really like the aluminum rearset mounts and engine mounts with the countersunk holes. But, I gotta ask you, what kind of dog is that? Looks identical to my 8 year old, 88lbs female Doberman-Rotweiller cross!

 

[oldog]

WOW.. how much to make a set of those for my 1975 cb750f????... seriously!!!. DAMN!!
my right brake is a disc set up!

I have so many hrs in the brackets, not really sure how many but would guess about 30-40. I made a working set of brackets out of the same thickness in plywood before the aluminum ones to figure out where the peg positions and control/linkages would work best (the plywood ones looked like swiss cheese before I got all the mounting holes right).
I'm really swamped for time right now as I need to keep driving on with this project. I could send a set of actual size paper templates to you though.

 

[oldog]

I gotta ask you, what kind of dog is that? Looks identical to my 8 year old, 88lbs female Doberman-Rotweiller cross!

HA..Thats my 5yr old baby "Rozwell". She's a female Rott/Lab mix. Her mom was the rotty. I don't see to much Lab in her but she sure does have a fetish for birds. She barks at any birds that are on the ground.

 

[oldog]

Got some more done in the past week. I upgraded the steering stem to taper bearings and needle bearings in swingarm. Got the rotor drilled out and swapped out the forks from a 78-K

 

[oldog]

Started on the electrical. I'm using 900 TCI coils and was aware that some mods needed to be done here. I'm going to run 2 ballast resistors before the primary to compensate for the lower resistance coils. No resistor wires or caps.
The biggest problem was to mount them and have lots of clearance from the fuel tank. This bracket that I came up with will work good. There is lots of air between the 2.

 

[Newman]

Your bike really looks good. I like what you did with the reaset brackets ,that's a nice detail.