Author Topic: Carb ID and rebuild 1972 vs 1976  (Read 1382 times)

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Offline BikerBoyPerk

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Carb ID and rebuild 1972 vs 1976
« on: July 27, 2012, 01:37:39 PM »
hello all,

I'm new to the CB750 world but a long time rider and have a questions about carbs.  My 1972 CB750 has a mix of '72 and '76 carbs on it and they are sticking & leaking.  I've cleaned them so, based on reading the forum, it's time to replace the float valves.  My question is can I put the '76 need & seats on the earlier carbs?  the only difference i see is the screen attached to the seats.

'69-75 16011-302-000
'72      16011-341-004

and is $10 at carbkitscapital dot com the best place to get them?


thanks everyone

Perk

current
'84 GL1100
'72 CB7500 santee chopper

past '02 VTX1800R/S
CB600
MB5
R6
'72 CB 750 Hardtail chopper (project)
'84 GL1200
gone but not 4gotten
'02 VTX1800R/S
'90CBR600
R6
MB5

Online CycleRanger

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Re: Carb ID and rebuild 1972 vs 1976
« Reply #1 on: July 27, 2012, 01:43:52 PM »
Pretty much the 086A and 657A & B carb bodies are identical. They only really differ by jet sizes, so yes that should work.

Check out jetsrus.com or http://www.siriusconinc.com/ for parts.  (Or other places.....)
Do you have a copy of the Honda Shop Manual or Parts List for your bike? Get one here:
https://www.honda4fun.com/materiale/documentazione-tecnica
CB750K5        '79 XL250s     CL350K3
CB750K3        '76 XS650      '76 CJ360T

Offline lucky

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Re: Carb ID and rebuild 1972 vs 1976
« Reply #2 on: July 27, 2012, 01:49:18 PM »
hello all,

I'm new to the CB750 world but a long time rider and have a questions about carbs.  My 1972 CB750 has a mix of '72 and '76 carbs on it and they are sticking & leaking.  I've cleaned them so, based on reading the forum, it's time to replace the float valves.  My question is can I put the '76 need & seats on the earlier carbs?  the only difference i see is the screen attached to the seats.

'69-75 16011-302-000
'72      16011-341-004

and is $10 at carbkitscapital dot com the best place to get them?


thanks everyone

Perk

current
'84 GL1100
'72 CB7500 santee chopper

past '02 VTX1800R/S
CB600
MB5
R6

If the 1976 uses the screen version of the float needle I would use that one.

Can you please post a photo of your Santee Chopper? Thanks LUCKY

Offline BikerBoyPerk

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Re: Carb ID and rebuild 1972 vs 1976
« Reply #3 on: July 27, 2012, 09:54:29 PM »
let me try an find a way to lower the quality so I can upload it tomorrow

thanks for all your responces
'72 CB 750 Hardtail chopper (project)
'84 GL1200
gone but not 4gotten
'02 VTX1800R/S
'90CBR600
R6
MB5