Author Topic: Cb750f2  (Read 1050 times)

Offline brodsord

  • SOHC Associate
  • Posts: 67
    • View Profile
Cb750f2
« on: January 11, 2020, 04:21:47 PM »
Hi everyone,
I have a cb750f2 build on the go at the moment,
Bought as a rolling frame and a box of bits. Been slowly putting her back together and one of the scores of bits missing was rear master cylinder.
Managed to find one in the states needing overhaul.
I’ve drilled the old piston out but managed to balls it all up by drilling the first part of the cylinder to wide so piston rubber has  to much play.
Has anyone got any solutions for this problem?
Is it possible to get the cylinder bored out slightly bigger then a new sleeve inserted and welded at that the top ?
Thanks

Offline Rob62

  • SOHC Pro
  • Posts: 889
  • ZZR1100D9, CB750K4, RD250F, NSR250MC21, RD350YPVS
    • View Profile

Offline brodsord

  • SOHC Associate
  • Posts: 67
    • View Profile
Re: Cb750f2
« Reply #2 on: January 11, 2020, 05:36:56 PM »

Offline Bryanj

  • Grogu
  • *
  • Posts: 10692
    • View Profile
Re: Cb750f2
« Reply #3 on: January 11, 2020, 05:38:59 PM »
I think a GL 1000 one will fit and if you dont want concouse one of the cheap chinese scooter rears can be made to fit with simple brackets

Offline brodsord

  • SOHC Associate
  • Posts: 67
    • View Profile
Re: Cb750f2
« Reply #4 on: January 11, 2020, 05:47:23 PM »
I think a GL 1000 one will fit and if you dont want concouse one of the cheap chinese scooter rears can be made to fit with simple brackets
Thanks Bryan, the GL looks the same bolt positions although I think the fluid reservoir will not fit correctly into the area behind the were rear brake/foot pegs connect onto, the ally manifold in picture


Sent from my iPhone using Tapatalk

Offline Rob62

  • SOHC Pro
  • Posts: 889
  • ZZR1100D9, CB750K4, RD250F, NSR250MC21, RD350YPVS
    • View Profile
Re: Cb750f2
« Reply #5 on: January 11, 2020, 11:05:12 PM »
https://www.ebay.co.uk/itm/Honda-CB750-CB-750-F2-1992-2000-Rear-Brake-Braking-Master-Cylinder-Linkage/312822958309?hash=item48d5b388e5:g:on4AAOSwh~pduHRV
Thanks Rob, it’s not that one tho. It’s for a 1978f2


Sent from my iPhone using Tapatalk

Oops, sorry mate....I didn’t read carefully. I would be tempted to do as bryanj suggests and use either a new Chinese unit or try to find a used jap alternative at an auto jumble. Good luck with it.
« Last Edit: January 11, 2020, 11:07:06 PM by Rob62 »

Offline brodsord

  • SOHC Associate
  • Posts: 67
    • View Profile
Re: Cb750f2
« Reply #6 on: January 11, 2020, 11:29:27 PM »
https://www.ebay.co.uk/itm/Honda-CB750-CB-750-F2-1992-2000-Rear-Brake-Braking-Master-Cylinder-Linkage/312822958309?hash=item48d5b388e5:g:on4AAOSwh~pduHRV
Thanks Rob, it’s not that one tho. It’s for a 1978f2


Sent from my iPhone using Tapatalk

Oops, sorry mate....I didn’t read carefully. I would be tempted to do as bryanj suggests and use either a new Chinese unit or try to find a used jap alternative at an auto jumble. Good luck with it.
Thanks Rob


Sent from my iPhone using Tapatalk

Offline royhall

  • SOHC Jedi
  • Posts: 3380
  • Keep biking I'm not quite bankrupt yet
    • View Profile
Re: Cb750f2
« Reply #7 on: January 12, 2020, 11:49:56 AM »
The CX500 uses the same disk and caliper so possibly the cylinder will be the same. Worth checking out.

Sent from my Pixel 3a XL using Tapatalk

Current bikes:
TriBsa CCM 350 Twin
Honda CB350F in Candy Bacchus Olive
Honda CB750F2 in Candy Apple Red
Triumph Trident 660 in Black/White
Triumph T100C
Suzuki GS1000HC
Honda CB450K0 Black Bomber
Honda CB750K5 in Planet Blue Metallic (Current Project)

Offline Bryanj

  • Grogu
  • *
  • Posts: 10692
    • View Profile
Re: Cb750f2
« Reply #8 on: January 12, 2020, 03:08:18 PM »
CX 500 had a drum rear brake

Offline royhall

  • SOHC Jedi
  • Posts: 3380
  • Keep biking I'm not quite bankrupt yet
    • View Profile
Re: Cb750f2
« Reply #9 on: January 12, 2020, 04:30:20 PM »
Late models and the Turbo version.
Current bikes:
TriBsa CCM 350 Twin
Honda CB350F in Candy Bacchus Olive
Honda CB750F2 in Candy Apple Red
Triumph Trident 660 in Black/White
Triumph T100C
Suzuki GS1000HC
Honda CB450K0 Black Bomber
Honda CB750K5 in Planet Blue Metallic (Current Project)

Offline Bryanj

  • Grogu
  • *
  • Posts: 10692
    • View Profile
Re: Cb750f2
« Reply #10 on: January 12, 2020, 04:36:52 PM »
Just as rare as the F2 one i would think

Offline royhall

  • SOHC Jedi
  • Posts: 3380
  • Keep biking I'm not quite bankrupt yet
    • View Profile
Re: Cb750f2
« Reply #11 on: January 12, 2020, 04:54:26 PM »
About 2 years ago I replaced my F2 rear caliper with a CX unit and there were loads about, but I think your right as I could only find one now. Maybe should have kept quite about it as the F2 boys were not aware it was the same caliper back then.  ;D



Current bikes:
TriBsa CCM 350 Twin
Honda CB350F in Candy Bacchus Olive
Honda CB750F2 in Candy Apple Red
Triumph Trident 660 in Black/White
Triumph T100C
Suzuki GS1000HC
Honda CB450K0 Black Bomber
Honda CB750K5 in Planet Blue Metallic (Current Project)

 

SimplePortal 2.3.5 © 2008-2012, SimplePortal