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Author Topic: Cb550 F2 Horn Mounting  (Read 414 times)

Offline bbrian66

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Re: Cb550 F2 Horn Mounting
« Reply #15 on: March 28, 2026, 07:55:20 PM »
Thank you guys. I wondered if the holes had been filled in.  I'll take a better look tomorrow.
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Offline McCabe-Thiele (Ted)

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Re: Cb550 F2 Horn Mounting
« Reply #16 on: March 28, 2026, 08:09:15 PM »
Theses photos might help, one shows the horn in place with the bracket, other shows the front mounting point on the right side of my frame. Zooming in is required. The parts manual might also show the frame mounting points - not checked that.

#52670411081_9c2f8607e9_b by Macabe Thiele, on Flickr

#500 horn mount by Macabe Thiele, on Flickr

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Offline McCabe-Thiele (Ted)

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Re: Cb550 F2 Horn Mounting
« Reply #17 on: March 28, 2026, 08:38:53 PM »
In the 500 downloadable manual here F36 Page 140 shows the frame horn mounting.
My bare frame photo is a side shot so is of no help.
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Honda CB400NA Superdream (current money puddle)
Honda CB500 K1 (second money pit)
https://www.sohc.co.uk/index.php/topic,28541.0.html
Honda CB400 four super sport (first money pit)
Link to my full restoration http://www.sohc.co.uk/index.php/topic,23291.0.html
This is a neat 500 restoration in the USA.
http://forums.sohc4.net/index.php/topic,151576.msg1731556.html#msg1731556

Offline bbrian66

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Re: Cb550 F2 Horn Mounting
« Reply #18 on: March 29, 2026, 06:22:31 PM »
 Hi Ted - many thanks for sharing this. I've been through all of the downloadable manuals on this site and I can't find anything that matches the reference you quote.

I'm really stumped why my frame should have lost the horn mounting. I've taken a couple of much clearer pics of the frame. Despite  all the helpful images posted on here, I still can't see exactly what I'm missing. Should there be something welded across the front of the frame to take the horn?
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Offline Nurse Julie

  • 1977 CB550/4 Mongrel Brat. 1974 UK 500/4 K1. Honda CD250u.
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Re: Cb550 F2 Horn Mounting
« Reply #19 on: March 29, 2026, 06:29:38 PM »
I found this photo on tinternet, it may help. You have the bracket that's welded to the frame missing. The horn bolts to the bracket.

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« Last Edit: March 29, 2026, 06:33:02 PM by Nurse Julie »
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LINK TO MY EBAY PAGE. As many of you know already, I give discount and do post at cost to forum members if you PM me direct.
https://www.ebay.co.uk/sch/julies9731/m.html?item=165142672569&rt=nc&_trksid=p2047675.m3561.l2562

LINK TO MY CB400/4 ENGINE STRIP / ASSESSMENT AND REBUILD...NOW COMPLETE
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Offline Nurse Julie

  • 1977 CB550/4 Mongrel Brat. 1974 UK 500/4 K1. Honda CD250u.
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Re: Cb550 F2 Horn Mounting
« Reply #20 on: March 29, 2026, 06:38:51 PM »
On this photo, you can see where the bracket is welded to the frame, the bracket on this one has snapped off and all that's left is the stub. It looks like yours has snapped off where it actually joins the frame.

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LINK TO MY EBAY PAGE. As many of you know already, I give discount and do post at cost to forum members if you PM me direct.
https://www.ebay.co.uk/sch/julies9731/m.html?item=165142672569&rt=nc&_trksid=p2047675.m3561.l2562

LINK TO MY CB400/4 ENGINE STRIP / ASSESSMENT AND REBUILD...NOW COMPLETE
http://www.sohc.co.uk/index.php/topic,14049.msg112691/topicseen.html#new

Offline McCabe-Thiele (Ted)

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Re: Cb550 F2 Horn Mounting
« Reply #21 on: March 29, 2026, 06:55:33 PM »
This photo shows the bracket as seen from the right side of the frame, to the left of the lower steering shaft bearing.
IIRC the lug is only welded on the right side of the frame (consistent with your frame that shows the welded up lug point), the integrated bracket provides the second mounting hole to the right side.

The Chassis plate on my frame  is clearly not an original fitting btw.

#Tool in place by Macabe Thiele, on Flickr
« Last Edit: March 29, 2026, 07:00:54 PM by McCabe-Thiele (Ted) »
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Honda CB400NA Superdream (current money puddle)
Honda CB500 K1 (second money pit)
https://www.sohc.co.uk/index.php/topic,28541.0.html
Honda CB400 four super sport (first money pit)
Link to my full restoration http://www.sohc.co.uk/index.php/topic,23291.0.html
This is a neat 500 restoration in the USA.
http://forums.sohc4.net/index.php/topic,151576.msg1731556.html#msg1731556

Offline bbrian66

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Re: Cb550 F2 Horn Mounting
« Reply #22 on: March 29, 2026, 07:37:12 PM »
Thank you both! This is hugely helpful. Im glad I liked into this before going much further!
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