Vintage Speed Part Mashup - 1976 CB750F

Back at it! I've been trying to figure out the cleanest way to run the brake line from the front master through the bottom tree. I didn't want to just drill a few holes in the lower tree and go about it that way. I designed this manifold to get the outlets for each caliper a bit further apart. This manifold will be fitted flush under the bottom tree. From the top all you will see is the one inlet fitting. That line will be a bent hard line in stainless steel. Once everything else is done and the triple tree is cut to accept it, I will attach it with a few small Allen bolts.
 

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Got a couple bits back from water jet cutting to get ready to make a few more parts. The first is a template I drew up so I could properly locate my brake line manifold under the bottom tree. I had to press the stem out so I could mount the tree in the mill for cutting.

I also modified the design on the front and rear motor mounts from previous so I could make some additional cuts on each like milling bosses for the bolts into each to give them a more three-dimensional look.

The next is the catch can mounts. I redesigned these since the pinch on the other ones I made didn't work very well and this arrangement will be much better.

Last is for the gas cap and oil cap. The original Rickman unit is black plastic and since I wanted both caps to match, I decided to go aluminum. I will do some shaping and fitting on these to profile them down nice and slim.
 

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Fantastic thread mate 8) all those one off's :p kinda wot I dream of doin :eek: haha keep goin mate following all the way
 
I really need to get a lathe, and even just a Harbor Freight milling machine, XY Vise, rotary table... your endeavors always have me in awe, and your assistance with my build really inspires me
 
Got the front brake line manifold fitted to the lower tree and I have to say I think its one of the coolest bits on the whole bike. This way really cleans up the lower triple where the splitter is normally visible from the front. Now, unless you crouch down, you will just see one line going in and two coming out. I'm very happy with the way this turned out.
 

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Been trying to keep pressure on this project for the last few weeks, even if its just one small thing here and there, rather than going dormant for long periods.

I got some fitting done on the replacement gas cap. This is an aluminum unit that mimics the original Rickman shape. The cap valve is now fitted. I will need to come up with a "snout" that I can bolt to the holes where the cap valve is so I can turn the curved top profile of the cap so it is closer to the original in shape.

I also realized that I didn't have pics of the new rearset brackets on the thread yet so here they are. The ones I had before were a copy of some others I had seen and I wanted something fresh so came up with a more organic design. My intention is for all parts to be one off but instead of looking like freshly machined billet, they will almost look like a nicely cast part from the era.

Lastly is the front engine mount. Again, this is the second one I made since the first didn't have any depth to it and was boring to me. It may be a little thick so I might take 3/16" off the back but I'm still debating.
 

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slikwilli420 said:
Been trying to keep pressure on this project for the last few weeks, even if its just one small thing here and there, rather than going dormant for long periods.

I got some fitting done on the replacement gas cap. This is an aluminum unit that mimics the original Rickman shape. The cap valve is now fitted. I will need to come up with a "snout" that I can bolt to the holes where the cap valve is so I can turn the curved top profile of the cap so it is closer to the original in shape.

I also realized that I didn't have pics of the new rearset brackets on the thread yet so here they are. The ones I had before were a copy of some others I had seen and I wanted something fresh so came up with a more organic design. My intention is for all parts to be one off but instead of looking like freshly machined billet, they will almost look like a nicely cast part from the era.

Lastly is the front engine mount. Again, this is the second one I made since the first didn't have any depth to it and was boring to me. It may be a little thick so I might take 3/16" off the back but I'm still debating.

We're the rearsets CNC'd?


Sent from my iPhone using Tapatalk
 
just found this thread and went through it. Super nice work! I will be following this one.
 
Back to polishing parts to finish assembling the front end. Items left on the front besides polishing:
Brake lines
Finish brake line manifold
Fit different clip ons (going from new tommaselli bars to vintage ones)
Finish mounting fender

After that it will be on to finishing the drawn out project of rebuilding my Marzocchi shocks. Then hopefully it will be time for a roller.

Here is some polishing porn.
 

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Without any adieu whatsoever here is a peek at the cockpit as it sits right now. Still need to gather some bits to complete the setup but it will be full tilt vintage race parts. Still need to figure out switches but that's a minor detail.

It took a lot of searching to get that clutch master and it even went back to AP for refurbishing but they didn't even have some of the parts, that's how rare they said it was, having ceased production in the early 80s. In the end it cost a mint but is well worth it.
 

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gotta love that AP racing stuff. What throttle housing is that?
 
I love the AP pieces. Almost a side hobby for me and now I have the full set. The throttle is the tommaselli super pratic. It's the early one with a traditional clamp fir the bar instead of a set screw. It's a really nice cast aluminum piece.
 
Another update. I guess I'm on fire, huh?

Working toward getting the clutch slave mounted. The plate I'm using has been sitting around for almost 10 years waiting for prime time. Got the mounting holes drilled and counter sunk as well as the holes that hold the slave on. Going to 1/8" quarter round the edges of the plate so it looks more seamless with the rest of the cover. The Magura slave is NOS and is the same used by others whom have done this mod.
 

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