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Author Topic: 750F Master Cyclinder Diameter  (Read 733 times)

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Offline billstron

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750F Master Cyclinder Diameter
« on: August 18, 2007, 04:32:08 PM »
I have done a search, but can't seem to find this info.  What is the diameter of the '80 750F master cylinder?  I am converting my 550 to dual disks.  Thanks...
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Offline billstron

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Re: 750F Master Cyclinder Diameter
« Reply #1 on: August 19, 2007, 08:34:00 AM »
Come on... one of you knows. 
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Offline spitfire

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Re: 750F Master Cyclinder Diameter
« Reply #2 on: August 19, 2007, 12:21:17 PM »
You are not being ignored, if it was a 1976 CB750F I could answer but 1980 goes into the era of the DOHC, and I haven't a clue about them.

Cheers

Den
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Wirral UK
1976 CB750F1 bought new in 76
1977 CB750F2: Restoration started
1964 BSA A65R: Waiting restoration
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Offline Clyde

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Re: 750F Master Cyclinder Diameter
« Reply #3 on: August 19, 2007, 11:27:03 PM »
Most of the double disc setups of the time used 5/8" (0.625") bore whereas the single cylinder ones (CB750) used 14mm (0.551"). Some of the larger  sized master cylinders had 5/8 stamped underneath the MC.
Regds Clyde
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SOHC4 #1909
Honda CB750 K0(original and unrestored), K1(in pieces), K2(restored), F1(restored), 76 750a (awaiting restoration), 1966 Honda CB72
Suzuki GT750 1972 (restored), Kawasaki Z1 1973 (restored)

Offline billstron

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Re: 750F Master Cyclinder Diameter
« Reply #4 on: August 20, 2007, 08:19:36 AM »
Thanks for the helpful reply.  I just looked on the bottom of 750 master cylinder and it indicates that the diameter is 14mm.  I never even thought to look there.  Thanks! 
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