Author Topic: Simon46 1978 CB750K American project  (Read 2173 times)

Offline Simon46

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Simon46 1978 CB750K American project
« on: May 21, 2018, 02:39:58 PM »
The shopping list begins
2 fork seals or seal mate?
Carb float bowl and o rings kit X4
Exhaust spacer lhs fabricated so centre stand doesn't rub on chain
Tail light lens
Fuel tank acid washed 1992 fuel varnish
Fuel tap (leaking out of tap lever face when on)
3.50-19 period tyre (cracked) and inner tube
120/90 period tyre (cracked) and inner tube
Front brake hose complete (cracked)
Rechrome RHS exhaust. Chrome fell off clean metal underneath
Shares in DS.


Getting carbs and engine running right before I tackle the rest


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1978 Cb750k8 US Import

Offline Simon46

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Re: Simon46 1978 CB750K American project
« Reply #1 on: May 21, 2018, 02:55:11 PM »
http://imgur.com/MABs6yP

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Offline Moorey

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Re: Simon46 1978 CB750K American project
« Reply #2 on: May 21, 2018, 03:26:16 PM »
Linky no worky. :)

Offline Simon46

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Re: Simon46 1978 CB750K American project
« Reply #3 on: May 21, 2018, 03:31:12 PM »
Trying again with public selected. Sorry new to this
https://i.imgur.com/RLOHBBI.jpg

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Offline Moorey

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Re: Simon46 1978 CB750K American project
« Reply #4 on: May 21, 2018, 04:31:47 PM »
That looks to be in decent nick.

Offline Seabeowner

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Re: Simon46 1978 CB750K American project
« Reply #5 on: May 21, 2018, 04:42:13 PM »
I've done two 550 imports that were sort of running and sort of complete. One had 20k and one 30k and had a life of riley in the thin air of the USA. I spent about 1.2 times what the bikes cost me just to get them satisfactory and on the road.
You've got the tank and I presume the side panels, so maybe not much to search for from the look of it.
Good luck Simon
Phil
1971  CB500K0  Candy Jade Green or Candy Gold
1973  CB500K1  Candy Ruby Red
1975  CB550F1   Shiny Orange
1978  CB550K     Excel Black

Offline Simon46

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Re: Simon46 1978 CB750K American project
« Reply #6 on: May 21, 2018, 05:01:56 PM »
Side panels pulling them they cracked. Stuck in grommets Pissed

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Offline Simon46

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Re: Simon46 1978 CB750K American project
« Reply #7 on: May 21, 2018, 05:14:10 PM »
Tank is in dixon radiator repairs at the moment. Hopefully it comes out intact. Budget on this is 500. 170 already spent. My dt 175mx build took 2200 out my pocket. My  87 XT600 stands at 200 quid. Both on road. No stranger to basket cases!

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Offline Simon46

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Re: Simon46 1978 CB750K American project
« Reply #8 on: May 24, 2018, 02:46:13 PM »
Cracks in rubber.
Can anyone point me in the right direction for a front brake hose. Is non period braided a no no? Switch is in handlebar so one piece hose from master to slave.
Also need tyres front and back. What would you recommend?

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Offline hairygit

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Re: Simon46 1978 CB750K American project
« Reply #9 on: May 24, 2018, 04:34:41 PM »
It's your bike, and unless you're planning a museum quality restoration, which with your budget I'm assuming not, by all means use modern braided brake hoses. If you're worried they may look too modern, you can buy them with black (or about 10 other colours!) plastic sheathing over the top of the braiding, so it would look like standard hose until you got close up to it.
If it's got tits or wheels, it's hassle, if it's got both, RUN!!!

Offline Simon46

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Re: Simon46 1978 CB750K American project
« Reply #10 on: May 24, 2018, 05:07:44 PM »
Thanks HG. I've emailed DS part obsolete not in stock. Going to take it to Stockport hydraulics to see if they can do it in braided. Mines just not 2 pieces which I can get off ebay. Will report back on outcome.
Not sure the budget will stay under target for this build (again)

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Offline Simon46

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Re: Simon46 1978 CB750K American project
« Reply #11 on: May 24, 2018, 06:43:05 PM »
Ah brand new batt drops from 11.8 (yes it's rundown with all the starting) to 11.3 when idling. More digging. Am searching the threads now.

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Offline Simon46

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Re: Simon46 1978 CB750K American project
« Reply #12 on: May 28, 2018, 11:18:35 AM »
Preliminary testing  from the 3 yellow wires from the stator shows no reading from one to any others. However wiggle the wire where it goes into the engine and a reading briefly shows.
Field coil OK at 7 ohms.

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Offline hairygit

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Re: Simon46 1978 CB750K American project
« Reply #13 on: May 28, 2018, 11:47:15 AM »
Obviously a break in the wires then, replacement wires being the easiest option.

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If it's got tits or wheels, it's hassle, if it's got both, RUN!!!

Offline Simon46

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Re: Simon46 1978 CB750K American project
« Reply #14 on: May 28, 2018, 03:07:05 PM »
Honda parts seem to be more readily available than the yams. Will look into loom. Thanks HG

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