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Author Topic: converting CB750 disc to 500  (Read 2175 times)

Offline AshimotoK0

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converting CB750 disc to 500
« on: December 10, 2015, 10:37:17 AM »
Looking at CB500 disc compared to Cb750K1-K6 the only difference is the diameter of the disc. The  carrier looks the same (same hub). Anyone see any problems with machining one down. I have a nice spare 750 one that was on my K0 (K0 is different) . The one on my 500 is drilled...probably a lot better performance than standard but I want to rebuild as standard.
« Last Edit: December 10, 2015, 10:39:21 AM by AshimotoK0 »
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Offline AshimotoK0

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Re: converting CB750 disc to 500
« Reply #1 on: December 10, 2015, 11:23:07 AM »
Hi Ken ... if you have one spare to sell that would be great. Also did you manage to look for the 3-hole guard you said you might have. I have a grab rail now but I don't have the rear indicator stalks. Also need the 4 tab washers for sprocket but I think DS sells them if you don't have any. Not delved too deep into the engine  on mine yet but Bryan in selling me a gasket set. Top end looks OK so far.

cheers ... Ash
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“Alright friends, you have seen the heavy groups, now you will see morning maniac music. Believe me, yeah. It’s a new dawn.” Grace Slick, Woodstock '69 .. In the year of the Sandcast.

Offline Chris400F

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Re: converting CB750 disc to 500
« Reply #2 on: December 10, 2015, 11:41:49 AM »
Quote from: Oddjob on December 10, 2015, 11:06:43 AM
I have an undrilled 500 disc lying around Ash, you want it? Postage might be high though as they ain't light.
I sent a 400/4 one not long ago via myHermes.
Can't remember what it weighed but upto 5Kg is £5.99, upto 10Kg is £7.69.
Much cheaper than Royal mail.
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Offline MCTID

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Re: converting CB750 disc to 500
« Reply #3 on: December 10, 2015, 02:33:41 PM »
I have used Hermes a lot lately to pick up parts etc. I have nothing but the highest praise for their services........I bought a Triumph Petrol Tank and a Cylinder Head and e mailed the Collection Label to the Seller.......unbeknown to me he split them into two parcels........which hermes picked up OK.
A couple of days later the Tank arrived which left me with a horrible feeling that I'd never see the Cylinder Head (£125) again.......but the next day (Saturday - about 3PM) in a really awful downpour a nice young Lady delivered it.

For £7.49 I call that good service........especially as I bought 4 X Large Letter Stamps from the PO today (£3.80), a dozen first and a dozen second class stamps - NINETEEN POUNDS AND SEVENTY FOUR PENCE in total. At least Dick Turpin wore a mask!
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Now: 2008 CB1300S, CB750K4, 1970 Bonneville. Various other 1960's 650 Triumph T120's/ TR6's/ TR6C's (all in bits...many, many bits unfortunately). Previous: 2007 CB600FA, 1976 CB500 Four. BMW F800ST. GS750E. ZZR1100. CB1300 (2). ZXR1200S. VFR800. CB750 Nighthawk. CX500. XS500 Yam. Suzuki GT500. BSA A10. Various Lambrettas. Zundapp Bella (honest).

Offline haynes66

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Re: converting CB750 disc to 500
« Reply #4 on: December 10, 2015, 04:28:30 PM »
i'll have your drilled disc ash...
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Offline AshimotoK0

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Re: converting CB750 disc to 500
« Reply #5 on: December 10, 2015, 08:34:41 PM »
Quote from: haynes66 on December 10, 2015, 04:28:30 PM
i'll have your drilled disc ash...

Need to secure an undrilled one first ! But you have first dibs when I get rid  ;D
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“Alright friends, you have seen the heavy groups, now you will see morning maniac music. Believe me, yeah. It’s a new dawn.” Grace Slick, Woodstock '69 .. In the year of the Sandcast.

Offline AshimotoK0

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Re: converting CB750 disc to 500
« Reply #6 on: December 11, 2015, 08:00:27 AM »
Quote from: Oddjob on December 11, 2015, 12:15:08 AM
The disc is still on a front wheel currently cluttering up my loft. Not a chance of getting up there till Tuesday at the earliest I'm afraid.

As for the mudguard, I have one in the shed which is a 3 hole type, it has a small but rather deep dent in it but the chrome is great. Plus the dent is where you could hit it out from the other side. Not sure what level of restoration your taking the K0 to, a perfect one and it wouldn't really do. A decent one and it may do.

I also have a NOS 3 hole type in the loft somewhere as well, won't be cheap though as it's a genuine Honda one not a copy and they are really hard to find these days.

Trying to get the bike to as high standard as I can without it being a money pit like my 750K0 Ken or taking forever to restore. Can you send me a pic of the dented one please. I don't mind paying 'proper' money for a perfect NOS one so don't be shy in asking for what you think it's worth  ;D. Tuesday is fine ..guess you have been sent up there like me to get the Christmas tree out. Tiles blew off my roof in the storms  a week or two back.... sent me immediately up in the loft to retrieve my NOS HM300 pipes ! The family were dumbstruck by my actions  ;D
« Last Edit: December 11, 2015, 01:57:01 PM by AshimotoK0 »
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“Alright friends, you have seen the heavy groups, now you will see morning maniac music. Believe me, yeah. It’s a new dawn.” Grace Slick, Woodstock '69 .. In the year of the Sandcast.

Offline UK Pete

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Re: converting CB750 disc to 500
« Reply #7 on: December 11, 2015, 10:20:39 AM »
It used to be women and children first in an emergency ash, now its hm300,s and cb750 stash  ha ha
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