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Honda CB750K5 Restoration by Royhall

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Johnny4428:

--- Quote from: royhall on May 14, 2023, 10:42:32 AM ---
--- Quote from: Johnny4428 on May 14, 2023, 10:09:16 AM ---Nice work there Roy! That’s a clean looking brake disc is that new?

--- End quote ---
No it's a standard part that's been painted on it's centre and re-ground slightly to remove the minor scoring. To be honest it's better than a new part.

--- End quote ---
Nice to get it skimmed, thought it looked good. Had the 550 one done but my 750 one was ok.

royhall:
Whilst I'm in bracket making mode I will have a go at the Boyer Bransden ignition system. I was going to use a simpler device that just does away with the points then remembered I already had this sitting on the shelf as it was originally fitted to my CB350F. The first problem with Boyer is fitting the coils and box, they say to fix the box to the frame with cable ties. Trust me on this, that won't be happening. For the coils I modified the brackets I had already made for the 350 so that wasn't a major issue.

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For the blue box control unit I decided to fit it behind the side panel with the rest of the electrics. As I have already fitted the reg/rec unit in there, available space is low. The blue box has no means of fastening so I utilised the mounting point for the original regulator. I made a flat aluminium plate that bolted firmly to the mount, then stuck the box to it with double sided Mammoth tape. You could stick you granny to the ceiling with that stuff. Worked out quite well but I was a bit concerned about heat from the reg/rec unit, but as Boyer say to mount it right on top of the engine I doubt that it's a concern. As a bonus, it's now close enough to connect the blue and yellow wires from the pickups without going through the harness, I will just need to extend two wires to reach the coils.

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Just a few more items to be fitted and I can start the wiring. Not really lookind forwards to that.

Laverda Dave:
All looking good Roy. Very nice fabrication work going on especially with the coil mounts, they look OEM.

royhall:
I have been dealing with the electrics on the bike and it has been quite frustrating. I wont repeat everything again here as I addressed it on another thread. Just for completeness on the project thread it is on this link.   CB750 Wiring Issues (sohc.co.uk)

McCabe-Thiele (Ted):
We've all had Groundhog Days Roy - I had three on my 400 build.

I've been reading your electrical thread - very frustrating things vehicle electrics  - you start off at one end a battery with just two connections then the spaghetti trail begins.

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