Author Topic: 750 K7&8 petcock  (Read 1744 times)

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Offline brewsky

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750 K7&8 petcock
« on: August 02, 2011, 03:38:29 PM »
There is hope for replacement of a K8 petcock if you don't want to take it apart, find gaskets, and tap for screws etc.

http://www.cb750supply.com/products/6/fuel-system/67/petcock-parts

This one listed for the '77 models will fit, the main difference being the outlet is toward the rear rather than in toward the engine.

I just turned it around 90 degrees, or you could get a little longer piece of fuel line.

The price is right too!
« Last Edit: August 02, 2011, 03:42:36 PM by brewsky »
66 CA77
78 550K
78 CB750K
02 FZ1
09 GL 1800

Offline TMNT

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Re: 750 K7&8 petcock
« Reply #1 on: August 02, 2011, 04:45:18 PM »
Thanks for the link. I need one for my 78.
1978 cb750 Super Sport

Offline madmtnmotors

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Re: 750 K7&8 petcock
« Reply #2 on: August 02, 2011, 05:12:37 PM »
I, too, am using the 77' fuel valve on my 78'.
TAMTF...


Wilbur



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Offline SKTP

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Re: 750 K7&8 petcock
« Reply #3 on: August 02, 2011, 05:14:04 PM »
Thanks...!  :)
1978k rebuild thread http://forums.sohc4.net/index.php?topic=68423.0
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Offline brewsky

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Re: 750 K7&8 petcock
« Reply #4 on: August 03, 2011, 06:06:40 PM »
No problem!

I found this part number (16955-268-020) in another post for the replacement 4 hole washer, so I can now rebuild my old one and have a spare.

Anyone know a part number for the tabbed washer that sits in the groove of the nut thet screws onto the tank?

I found an o-ring that fits, but haven't tried it yet.
66 CA77
78 550K
78 CB750K
02 FZ1
09 GL 1800

Offline Stev-o

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Re: 750 K7&8 petcock
« Reply #5 on: August 18, 2012, 06:53:00 AM »
I know...old topic, but feeling lucky!

How have these worked out?  How is the look/quality compared to the originals??

My K2 has a leaky petcock so am considering one.  Thx
'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline Really?

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750 K7&8 petcock
« Reply #6 on: August 18, 2012, 10:22:43 AM »
I know...old topic, but feeling lucky!


That's funny!
I don't have a motorcycle, sold it ('85 Yamaha Venture Royale).  Haven't had a CB750 for over 40 years.

The Wife's Bike - 750K5
The Kid's Bike - 750K3

Offline Damfino

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Re: 750 K7&8 petcock
« Reply #7 on: August 18, 2012, 11:09:09 AM »
I know...old topic, but feeling lucky!

How does lucky feel about that? Lol...lol.  ;D
Your Message Here!
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Offline brewsky

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Re: 750 K7&8 petcock
« Reply #8 on: August 18, 2012, 03:17:10 PM »
I know...old topic, but feeling lucky!

How have these worked out?  How is the look/quality compared to the originals??

My K2 has a leaky petcock so am considering one.  Thx

Well, lucky you are....I'm still here and so is the petcock!

We just celebrated our first anniversary a couple weeks ago, and hasn't leaked a drop since installed.

Looks as good as new, just turned 90 degrees so the stock hose could be re-used.

 I fixed the old one, just haven't seen the need to put it back on.
66 CA77
78 550K
78 CB750K
02 FZ1
09 GL 1800

Offline Stev-o

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Re: 750 K7&8 petcock
« Reply #9 on: August 18, 2012, 03:23:18 PM »
Great, thanks for the update.
'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........