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1975 CB750k2 cafe build

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benholmes21:

--- Quote from: Rob62 on August 06, 2018, 11:09:36 PM ---Ah I see.. I wish I had access to a machine shop, i used to be a turner many moons ago, i could make my own... BTW You need a 127 tooth change-gear to cut metric threads on an imperial machine iirc.

--- End quote ---

That’s the joys of being machine tool maintenance. Not much I can’t get hold of at work really. Although when it comes to gearing etc, that’s where I’m useless as Im not a machinist, I just can turn/mill etc


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benholmes21:
So not much has been happening recently as I’m still waiting for a delivery from the USA with the parts I’ve ordered.

But hopefully next week the engine will be being stripped and painted in some VHT Nu-Cast aluminium. I have also painted a few casings with VHT crackle grey too....



I finally managed to get my hands on the correct CB550 swing arm to replace the standard one so I can run a wider rear wheel/tyre, and also being tubular it looks more in-keeping.

You’ll see that the undertray is finally welded in too so the frame/swingarm isn’t too far off going to powdercoat!



The delkevic exhaust I bought was originally up for sale, but I decided I’d chop up a brand new exhaust and make it custom, so I’ve just got to weld a new mount onto the frame once the engine is back in and it’s mocked up.



The father-in-law, who’s garage has been loaned to me after selling my house, has helped make and shape the rear hump that will hide the battery and electrics, so we just need to fibreglass it and that’ll go to paint with the tank and headlight soon.






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SumpMagnet:
Looking interesting :)

Love the colour this thing started out with. Nice shade of blue!

What are you using to shape the polystyrene with? I am planning a mild cafe racer look for mine and fancied having a go at making a seat. I have done plenty of fibreglass work before, and have always avoided using polystyurene as a mould as cutting it was messy and bothersome. Yours looks really neatly shaped.

benholmes21:

--- Quote from: SumpMagnet on September 09, 2018, 05:28:46 PM ---Looking interesting :)

Love the colour this thing started out with. Nice shade of blue!

What are you using to shape the polystyrene with? I am planning a mild cafe racer look for mine and fancied having a go at making a seat. I have done plenty of fibreglass work before, and have always avoided using polystyurene as a mould as cutting it was messy and bothersome. Yours looks really neatly shaped.

--- End quote ---

Thanks! Yeah it is quite nice but I think I’m aiming for more of a paste blue or a pastel green, although not full decided.

My father in law made the hump. We used a hand saw to cut the block to shape and then made formers. He used a hot wire to perfect the shape then finished it off with a little sanding. Hopefully it’ll be fibreglassed this week!


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benholmes21:
Quick update as a lot has happened over the last few months...

Moved house, so the Honda went back into boxes until it was unpacked into the new garage...

Here’s a few photos to update.




Carbs turn up from the states, got them from CycleX and they’re ready spaced for the CB750! Along with lots of other goodies that hopefully you’ll see soon.



Engine all painted, starter motor now rebuilt and installed too.




In the last stages of mocking up and the frame, etc should all be going to the powdercoaters in the next few weeks... ready to start the rebuilt

Cheers, Ben


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