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Author Topic: cb650 and cb750 mounting differences  (Read 4028 times)

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Offline MMICAFE

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cb650 and cb750 mounting differences
« on: May 03, 2009, 11:47:42 PM »
i wanna build my cb650 into a bobber but i dont have the skills to weld up a custom frame for a bobber build all the frames i see are cb750 frames for what i wanna do i just wanna know what are the differences in the monting points on the cb650 and the cb750 if anyone knows if i can put a cb650 motor into a cb750 bobber/chopper frame with minimum modifications please let me know A.S.A.P.
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1974 Honda CB450 super sport (sold sniff sniff) (my first bike)

1979 Honda CB650 (we have a love hate relationship)

2008 Honda metropolitan (sold kinda miss it for the gas mileage)

Offline Soos

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Re: cb650 and cb750 mounting differences
« Reply #1 on: May 03, 2009, 11:58:19 PM »
If you re-weld new mount locations for the 650 motor, sure it will fit in a 750 frame.


I've tried a SOHC 650 motor in a SOHC 750 and also a DOHC 750 frame... closer fit on the DOHC 750, but still no go without work with either of them.

However it would be easier stuffing a 650 motor in a 750 frame than the other way around.




l8r
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-=≡ Soos ≡=-
Just think to yourself what would Alowishus Devander Abercrombie do?
"Brix will be shat by your neighbors." - schwebel
(61mm)652cc 1979 cb650

Offline martino1972

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Re: cb650 and cb750 mounting differences
« Reply #2 on: May 04, 2009, 12:17:02 AM »
dude,the 650 frame has perfect lines to be a bobber..........
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Marti, I want you to know, I like you an awful lot, but guys have said far less and left wearing their drinks on their shirts.
http://forums.sohc4.net/index.php?topic=36933.0  (my bobber)

Offline Soos

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Re: cb650 and cb750 mounting differences
« Reply #3 on: May 04, 2009, 06:43:46 AM »
Quote from: martino1972 on May 04, 2009, 12:17:02 AM
dude,the 650 frame has perfect lines to be a bobber..........


Too bad he has a '79, would be a shame to scrap out such a rare frame.
BUT... you might want to look into the pre-fab rigid ends on fee-bay, or have it done by a local welder.


l8r
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-=≡ Soos ≡=-
Just think to yourself what would Alowishus Devander Abercrombie do?
"Brix will be shat by your neighbors." - schwebel
(61mm)652cc 1979 cb650
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