« previous next »
Pages: [1]   Go Down

Author Topic: Replacement horn  (Read 4963 times)

Offline ogri211

  • SOHC Member
  • Posts: 146
    • View Profile
Replacement horn
« on: March 30, 2018, 07:50:19 PM »
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.
 
Logged
Triumph Rocket3, Suzuki GT 750A, Kawasaki H1B, Honda 400 Four, Triumph Speed Triple

Offline hairygit

  • SOHC Jedi
  • Posts: 2708
    • View Profile
Re: Replacement horn
« Reply #1 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.

Sent from my X6pro using Tapatalk

Logged
If it's got tits or wheels, it's hassle, if it's got both, RUN!!!

Offline ogri211

  • SOHC Member
  • Posts: 146
    • View Profile
Re: Replacement horn
« Reply #2 on: March 30, 2018, 08:02:33 PM »
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.
Logged
Triumph Rocket3, Suzuki GT 750A, Kawasaki H1B, Honda 400 Four, Triumph Speed Triple

Offline hairygit

  • SOHC Jedi
  • Posts: 2708
    • View Profile
Re: Replacement horn
« Reply #3 on: March 30, 2018, 08:12:50 PM »
Okay, when you said you needed to replace it I assumed your original had stopped working.

Sent from my X6pro using Tapatalk

Logged
If it's got tits or wheels, it's hassle, if it's got both, RUN!!!

Offline AshimotoK0

  • Grogu
  • *
  • Posts: 7849
  • Mad Scientist.... more power Igor ! Ù©(̾๏̮̮̃̾๏̃̾)Û¶
    • View Profile
Re: Replacement horn
« Reply #4 on: March 30, 2018, 08:46:17 PM »
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.

Sent from my X6pro using Tapatalk

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.
« Last Edit: March 30, 2018, 08:51:46 PM by AshimotoK0 »
Logged
“Alright friends, you have seen the heavy groups, now you will see morning maniac music. Believe me, yeah. It’s a new dawn.” Grace Slick, Woodstock '69 .. In the year of the Sandcast.

Offline Laverda Dave

  • SOHC Jedi
  • Posts: 3625
  • Health is wealth
    • View Profile
Re: Replacement horn
« Reply #5 on: March 30, 2018, 10:32:41 PM »
Ash, no need to ruin one of your own horns during the trial, feel free to use my non working horn from my own 400  ;)
Logged
1977 Rickman Honda CR750
1999 Honda VFR 800FX
1955 750 Dresda Triton
1978 Moto Morini 350 Sport
1978 Honda CB400/4 'The Flying Banana'
1982 Laverda 120 Jota
2020 Royal Enfield Interceptor 650
1990 Honda VFR400R NC30

Offline AshimotoK0

  • Grogu
  • *
  • Posts: 7849
  • Mad Scientist.... more power Igor ! Ù©(̾๏̮̮̃̾๏̃̾)Û¶
    • View Profile
Re: Replacement horn
« Reply #6 on: March 30, 2018, 10:39:55 PM »
Quote from: Laverda120 on March 30, 2018, 10:32:41 PM
Ash, no need to ruin one of your own horns during the trial, feel free to use my non working horn from my own 400  ;)

If you want to send me it I will have a go...If it doesn't work I will use the other  'invasive'  method.
Logged
“Alright friends, you have seen the heavy groups, now you will see morning maniac music. Believe me, yeah. It’s a new dawn.” Grace Slick, Woodstock '69 .. In the year of the Sandcast.

Offline Laverda Dave

  • SOHC Jedi
  • Posts: 3625
  • Health is wealth
    • View Profile
Re: Replacement horn
« Reply #7 on: March 30, 2018, 11:02:48 PM »
Wow, that's an offer I can't refuse, thanks Ash :).
I'll dig it out over the rainy easter weekend and let you know when I find it.
Logged
1977 Rickman Honda CR750
1999 Honda VFR 800FX
1955 750 Dresda Triton
1978 Moto Morini 350 Sport
1978 Honda CB400/4 'The Flying Banana'
1982 Laverda 120 Jota
2020 Royal Enfield Interceptor 650
1990 Honda VFR400R NC30

Offline kevski

  • SOHC Pro
  • Posts: 517
    • View Profile
Re: Replacement horn
« Reply #8 on: March 31, 2018, 05:13:11 PM »
I picked up a pair of the chrome covered horns like on my 350 dirt cheap six screws cleaned the points and they work lovely, a pair of two tones now for my Zed.
Logged

Offline AshimotoK0

  • Grogu
  • *
  • Posts: 7849
  • Mad Scientist.... more power Igor ! Ù©(̾๏̮̮̃̾๏̃̾)Û¶
    • View Profile
Re: Replacement horn
« Reply #9 on: March 31, 2018, 05:30:23 PM »
Quote from: kevski on March 31, 2018, 05:13:11 PM
I picked up a pair of the chrome covered horns like on my 350 dirt cheap six screws cleaned the points and they work lovely, a pair of two tones now for my Zed.

The 400/4 horn is different though .. the 350/4 is  probably like the CB350 twin & CB750K0-etc and can be easily dismantled to get to the points. On the 400/4, CB250/360 G5, etc  it's crimped together and to gain full access to the points you have to de-crimp as detailed in my write-up. Or use one of the other fixes.
Logged
“Alright friends, you have seen the heavy groups, now you will see morning maniac music. Believe me, yeah. It’s a new dawn.” Grace Slick, Woodstock '69 .. In the year of the Sandcast.

Offline ogri211

  • SOHC Member
  • Posts: 146
    • View Profile
Re: Replacement horn
« Reply #10 on: March 31, 2018, 09:14:27 PM »
Ive found one on Ebay its a Mitsuba MB-E it is used on lots of old Hondas I just need to find a cover to finish it off.
Logged
Triumph Rocket3, Suzuki GT 750A, Kawasaki H1B, Honda 400 Four, Triumph Speed Triple

Offline Nurse Julie

  • 1977 CB550/4 Mongrel Brat. 1974 UK 500/4 K1. Honda CD250u.
  • Grogu
  • *
  • Posts: 8718
    • View Profile
Re: Replacement horn
« Reply #11 on: March 31, 2018, 09:17:37 PM »
If only we could turn the clock back a couple of weeks....i wouldn't have put mine on fleabay if I had known you needed one, sorry.
Logged
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 ogri211

  • SOHC Member
  • Posts: 146
    • View Profile
Re: Replacement horn
« Reply #12 on: March 31, 2018, 10:06:38 PM »
No problem I dont think it will stop me from putting the bike on the road, I got a horn from another Honda which is identical apart from the cover so Im sure one will come along.
Logged
Triumph Rocket3, Suzuki GT 750A, Kawasaki H1B, Honda 400 Four, Triumph Speed Triple

Offline AshimotoK0

  • Grogu
  • *
  • Posts: 7849
  • Mad Scientist.... more power Igor ! Ù©(̾๏̮̮̃̾๏̃̾)Û¶
    • View Profile
Re: Replacement horn
« Reply #13 on: April 01, 2018, 12:15:42 PM »
« Last Edit: April 01, 2018, 01:49:52 PM by AshimotoK0 »
Logged
“Alright friends, you have seen the heavy groups, now you will see morning maniac music. Believe me, yeah. It’s a new dawn.” Grace Slick, Woodstock '69 .. In the year of the Sandcast.

Offline ogri211

  • SOHC Member
  • Posts: 146
    • View Profile
Re: Replacement horn
« Reply #14 on: April 01, 2018, 06:47:01 PM »
Thanks for that, I managed to get one from another Honda it looks to be the exact horn without the plastic cover, a lot of the Hondas from the 80s and 90s use the Mitsuba MB-E so I got a good one for a tenner of ebay.

Logged
Triumph Rocket3, Suzuki GT 750A, Kawasaki H1B, Honda 400 Four, Triumph Speed Triple
Pages: [1]   Go Up
« previous next »