SOHC.co.uk Forums > CB350/400

Replacement horn

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ogri211:
I need to replace the horn on my 400 I dont think I would be able to get one of the originals with the plastic cover, what would be the recommendations for a replacement.
 

hairygit:
Have you tried fixing the original? Ashimoto  done an article about boiling them in a saucepan (not joking) and other things you can do to get them working again.

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ogri211:
unfortunately I dont have the original I was going to try and get a second hand one and either fix it or fit the plastic cover to a similar one if I can find one.

hairygit:
Okay, when you said you needed to replace it I assumed your original had stopped working.

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AshimotoK0:

--- Quote from: hairygit on March 30, 2018, 07:54:19 PM ---Have you tried fixing the original? Ashimoto  done an article about boiling them in a saucepan (not joking) and other things you can do to get them working again.

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--- End quote ---

Got me wrong there   :) ...that's someone else's  fix that I don't advocate.

http://www.sohc.co.uk/index.php/topic,13195.0.html

I do have another theory though, not tried yet .. feed the horn with high frequency, high voltage with voltage high enough to jump the high resistance film on the points. The discharge arc may electrically 'clean' the contacts and if left arcing for long enough may destroy the resistive corrosion layer. ... I do  have a horn somewhere...will have to try it out sometime.

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