Author Topic: Exhaust spigot question cb750  (Read 1915 times)

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Offline fdbrat

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Exhaust spigot question cb750
« on: May 29, 2013, 11:58:29 PM »
Hello fellas.

In regards to a 76 cb750f

The original exhaust is booted on via two studs.

I found a set of 4-2 pipes for under $100. The problem is it requires the spigots to clamp them on.

If I buy a set of spigots will the bolt on to my cb750f exhaust ports?

Thank you in advance.
1975 CB750F
4-4, Dyna S and box
5 ohm coils / 5k ohm caps
In- .05 / Ex- .08

San Luis Obispo

Offline fdbrat

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Re: Exhaust spigot question cb750
« Reply #1 on: May 29, 2013, 11:59:39 PM »
Here are the pipes I might acquire.
1975 CB750F
4-4, Dyna S and box
5 ohm coils / 5k ohm caps
In- .05 / Ex- .08

San Luis Obispo

Offline 754

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Re: Exhaust spigot question cb750
« Reply #2 on: May 30, 2013, 12:19:20 AM »
You need spigots counter sunk screws x8 and copper gaskets. They will fit once you remove the studs and old gaskets.
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Offline fdbrat

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Re: Exhaust spigot question cb750
« Reply #3 on: May 30, 2013, 12:32:26 AM »
I'm not sure what you mean by counter sunk.

So pull the studs. Bolt spigots in place grade 8 (8mm) bolts and clamp the lil guys on.

Plug and play no problems?

Awesome. Thank you very much.

I need to start a thread, Ill try to take pix as I go. I'm really excited about this scoot.

It was given to me by my land lord. A real mess. Motor frozen beyond all hope. I picked up a really clean cb750f engine with dyna ignition installed and carbs for $150.

1975 CB750F
4-4, Dyna S and box
5 ohm coils / 5k ohm caps
In- .05 / Ex- .08

San Luis Obispo

Offline fdbrat

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Re: Exhaust spigot question cb750
« Reply #4 on: May 30, 2013, 12:33:07 AM »
Oh yeah I need these guys right?
1975 CB750F
4-4, Dyna S and box
5 ohm coils / 5k ohm caps
In- .05 / Ex- .08

San Luis Obispo

Offline ekpent

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Re: Exhaust spigot question cb750
« Reply #5 on: May 30, 2013, 03:47:26 AM »
Yep you need those,4 crush gaskets and some proper screws that will fit nice and flush with the flanges.Those 8 screws have a little larger head than maybe hardware store items.

Offline 70CB750

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Re: Exhaust spigot question cb750
« Reply #6 on: May 30, 2013, 04:07:46 AM »
I would go socket head instead of phillips.  Like this:

http://www.mcmaster.com/#socket-head-cap-screws/=mz1nrd

Edit: I am not able to paste the link, just search for  them - see the picture.
« Last Edit: May 30, 2013, 04:10:02 AM by 70CB750 »
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