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Author Topic: 1975 CB550 Carb Drain Screw  (Read 2572 times)

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Offline rippopotamus

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1975 CB550 Carb Drain Screw
« on: April 11, 2011, 10:46:19 AM »
Does anyone know what size the Carb Drain Screws are? Also, anyone have a good source online? It looks like mine were replaced at some point with some that are not brass. They are supposed to be brass correct? And I will also be getting some new o-rings as well, which I found the size of in a post on the forum. Thanks!
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Offline Deltarider

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Re: 1975 CB550 Carb Drain Screw
« Reply #1 on: April 11, 2011, 01:38:35 PM »
If I remember well: 6mm, fine thread (0,75). And yep, they're supposed to be messing.
« Last Edit: April 11, 2011, 01:47:23 PM by Deltarider »
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Offline MADCB400F

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Re: 1975 CB550 Carb Drain Screw
« Reply #2 on: April 11, 2011, 01:44:41 PM »
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Offline rippopotamus

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Re: 1975 CB550 Carb Drain Screw
« Reply #3 on: April 12, 2011, 07:53:06 AM »
Thanks for the link.
Found this one there but not sure if it fits yet...my model isn't listed but doesn't mean it's not the same as another. I'm just too new at this to find out easily. I'll maybe have to call.

http://www.siriusconinc.com/pro-detail.php?pid=&product_id=3325
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1975 CB 550k  Metallic Orange(ish)

Offline rippopotamus

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Re: 1975 CB550 Carb Drain Screw
« Reply #4 on: April 12, 2011, 08:36:43 AM »
They also have this one.

http://www.siriusconinc.com/pro-detail.php?pid=&product_id=856

I called but they aren't sure if the part fits.

Anyone know if these are interchangeable with CB750 K0-K6 1969 - 1976?
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1975 CB 550k  Metallic Orange(ish)

Offline rb550four

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Re: 1975 CB550 Carb Drain Screw
« Reply #5 on: April 12, 2011, 06:24:04 PM »
Yes, The mikuni carb screw does fit the kei hin 550 carb, You got me wonderin ,so I ran out to the barn and tried them out, seems the same.
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Offline Deltarider

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Re: 1975 CB550 Carb Drain Screw
« Reply #6 on: April 13, 2011, 06:46:44 AM »
Quote
The mikuni carb screw does fit the kei hin 550 carb
So... the Mikuni is fine thread (0,75) too?
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Offline rippopotamus

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Re: 1975 CB550 Carb Drain Screw
« Reply #7 on: April 14, 2011, 06:00:08 PM »
Quote from: Deltarider on April 13, 2011, 06:46:44 AM
Quote
The mikuni carb screw does fit the kei hin 550 carb
So... the Mikuni is fine thread (0,75) too?


Thanks. I guess I'll have to try them out.
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1975 CB 550k  Metallic Orange(ish)
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