Author Topic: Simon46 1978 CB750K American project  (Read 2177 times)

Offline Simon46

  • SOHC Associate
  • Posts: 94
    • View Profile
Re: Simon46 1978 CB750K American project
« Reply #15 on: May 29, 2018, 03:00:55 PM »
Sprocket cover removal.
Do I have to be a jedi and use the force to extract this?

Sent from my G8141 using Tapatalk

1978 Cb750k8 US Import

Offline Simon46

  • SOHC Associate
  • Posts: 94
    • View Profile
Re: Simon46 1978 CB750K American project
« Reply #16 on: May 29, 2018, 04:22:36 PM »
Turns out needed to pull the cover anyway.
Oil leak
http://imgur.com/gallery/FpDLh47
Is there a gasket for the cover? Or just seal it on

https://i.imgur.com/4GaCQkS.jpg

And a locking bit for the sprocket?

Cb750 sprocket https://imgur.com/gallery/o5HvKan
Sent from my G8141 using Tapatalk

Think I found my charging fault
Cb750 not charging https://imgur.com/gallery/hpHlqej
« Last Edit: May 29, 2018, 08:01:35 PM by Simon46 »
1978 Cb750k8 US Import

Offline Simon46

  • SOHC Associate
  • Posts: 94
    • View Profile
Re: Simon46 1978 CB750K American project
« Reply #17 on: June 03, 2018, 11:08:32 AM »
Many thanks to Alan's electrics (Big Al) for supplying me with the alternator sub loom. Even threw in the 3 male connectors and sleeves to replace the melted ones for free!
Cb750 alternator sub loom fitted from Alan's electrics https://imgur.com/gallery/KC9ywos
1978 Cb750k8 US Import

Offline BigAl (Alan)

  • SOHC Pro
  • Posts: 530
  • Hope its sunny at the weekend
    • View Profile
    • www.alans-electrics.co.uk
Re: Simon46 1978 CB750K American project
« Reply #18 on: June 03, 2018, 04:46:30 PM »
Thanks Simon,  your field coil resistance value (7 ohms) is within the right area.
Very good images.

Alan
Current bikes:-
Honda CB750 K4 (1974) USA
Honda XL500S (1980) UK
Honda CD175 sloper (1968) UK
Honda CB1100A (2013) UK
www.alans-electrics.co.uk

Offline Simon46

  • SOHC Associate
  • Posts: 94
    • View Profile
Re: Simon46 1978 CB750K American project
« Reply #19 on: June 03, 2018, 09:14:49 PM »
Cheers mate. Studied 5 yrs electronic engineering. I now fix domestic appliances self employed. A damn well engineered loom that is. Hats off to your skills!

Sent from my G8141 using Tapatalk

1978 Cb750k8 US Import

Offline Simon46

  • SOHC Associate
  • Posts: 94
    • View Profile
Re: Simon46 1978 CB750K American project
« Reply #20 on: June 09, 2018, 05:42:37 AM »
Removed wheels for fitting new tyres and tubes
Cb750 doing a balancing act https://imgur.com/gallery/jYS6ekX

Well the tyres are fitted to the rims
Cb750 new tyres fitted https://imgur.com/gallery/s2JiHp2
1978 Cb750k8 US Import

Offline Simon46

  • SOHC Associate
  • Posts: 94
    • View Profile
Re: Simon46 1978 CB750K American project
« Reply #21 on: June 10, 2018, 07:19:14 AM »
Front brake hose arrived from furore
Cb750 front brake hose arrived https://imgur.com/gallery/dOKlZM5

Lever feels A lot less spongy than with the old cracked one
Cb750 front brake hose fitted https://imgur.com/gallery/Tw3a5n0

1978 Cb750k8 US Import

Offline Simon46

  • SOHC Associate
  • Posts: 94
    • View Profile
Re: Simon46 1978 CB750K American project
« Reply #22 on: June 12, 2018, 10:48:14 AM »
First time nervously on Road ride to mot test this morning insured on the vin number with no reg plate. And it passed! Woohoo. ;D ;D ;D
What a lovely smooth ride back. Those beeping indicators are a bit annoying. Every pedestrian could hear them.
1978 Cb750k8 US Import

Offline hairygit

  • SOHC Jedi
  • Posts: 2708
    • View Profile
Re: Simon46 1978 CB750K American project
« Reply #23 on: June 12, 2018, 11:30:55 AM »
Well done, always good to hear of success! As regards the indicator beeper, just disconnect it in the headlight shell, not a legal requirement, in fact Honda recommended dealers disconnected them because blind people would mistake it for a pedestrian crossing beeping.
If it's got tits or wheels, it's hassle, if it's got both, RUN!!!

Offline Underdog1

  • SOHC Expert
  • Posts: 486
    • View Profile
Re: Simon46 1978 CB750K American project
« Reply #24 on: June 12, 2018, 01:57:19 PM »
I’ve got some aftermarket bars on my bike with 3.5inch rise compared to the 4.5 inch rise for standard uk bars.

If I ordered the braided hoses for a standard bike will the inch extra length be a bother? Possible to diy trim them down slightly if needed?

Offline Bryanj

  • Grogu
  • *
  • Posts: 10694
    • View Profile
Re: Simon46 1978 CB750K American project
« Reply #25 on: June 12, 2018, 03:23:12 PM »
Some braided hoses you can shorten BUT you will need a new crimp olive and they may not sell you that

Offline paul G

  • SOHC Master
  • Posts: 1748
  • No room left in the garage what now !
    • View Profile
Re: Simon46 1978 CB750K American project
« Reply #26 on: June 12, 2018, 04:01:26 PM »
Rather than buying standard and cutting try these, I have used then a few times and they have been spot on.
You can buy all the bits and make your own.
https://www.venhill.co.uk/

Honda CB400 4
Honda CB550 K3 (sold)
Honda CB750 UK K1
Kawasaki Z650 C2
Kawasaki Z650 cafe racer (Sold)
Honda CD175 sloper

Offline Bryanj

  • Grogu
  • *
  • Posts: 10694
    • View Profile
Re: Simon46 1978 CB750K American project
« Reply #27 on: June 12, 2018, 06:01:20 PM »
Be carefull with the female end fittings  as on a lot of them the Honda nut on the end of the steel pipe will not tighten down as you need a nut with the first two threads missing due to the fitting threads not being deep enough OR an Op 2 pipe end with a double ended olive in the hole.

I found out all this the hard way!!

Offline Simon46

  • SOHC Associate
  • Posts: 94
    • View Profile
Re: Simon46 1978 CB750K American project
« Reply #28 on: June 12, 2018, 08:51:11 PM »
Thanks HG. All the mechanics came out of the garages to look at him. I've not seen one of those in years they said over and over. I felt like a film star  :D
1978 Cb750k8 US Import

Offline Green1

  • SOHC Jedi
  • Posts: 2656
    • View Profile
Re: Simon46 1978 CB750K American project
« Reply #29 on: June 12, 2018, 09:47:35 PM »
My front brake squeals even louder then the buzzer so you will still get every pedestrian look at you even after disconnecting it.
Current bikes
Honda CB750k1 Valley Green Metallic
Honda CB750k1 Candy Gold
Honda CB550k Candy Jade Green
Honda CG125
Aprilia Pegaso 650
Moto guzzi 1200 sport
Kawasaki EX650R (Mine until dave pays for it)
Kawasaki ZXR400 J

 

SimplePortal 2.3.5 © 2008-2012, SimplePortal