Results 1 to 8 of 8

Thread: Mini Blaster still not working.

  1. #1
    Subscriber Click here to find out how to Subscribe
    Join Date
    Oct 2014
    Location
    Cork, Ireland
    Posts
    180

    Mini Blaster still not working.

    After getting advice on here in relation to wiring a FIAMM Miniblaster through a relay I did so...

    I have 2 of them because I thought the first was faulty.

    When I press the horn button the relay clicks and I get 12v at the horn. I have used the earth wire which was originally at the horn and also tried running a new one just in case.

    I have changed the feed from the battery to 27a wire in case it’s too thin.

    Horn doesn’t work and the fuse blows after a few goes or holding the button for more than 2 seconds. tried 10a fuses.

    Both Horns works fine when I try directly from the battery... and as I said, getting 12v at the horn no problem...
    One make no noise at all and one seems to be trying to do something... kind of a quick popping sound.

    What am I missing???

  2. #2
    Subscriber Click here to find out how to Subscribe
    Join Date
    Jan 2007
    Location
    North Yorkshire
    Posts
    1,729
    You haven't inadvertently wired an earth directly to the switched live feed from the relay have you ?

  3. #3
    Subscriber Click here to find out how to Subscribe
    Join Date
    Jun 2006
    Location
    Islandmagee, Co Antrim NI
    Posts
    9,533
    Does your relay have terminals 30. 85. 86 and 87?? Making sure that there are No letters after the numbers??

    Terminal 30 Live "FUSED" feed

    Terminal 87 Load +ve (Split in two! one wire to each of the new horns not in series!)

    Terminal 85 Signal for relay (i.e. Horn Positive )

    Terminal 86 Signal for relay (i.e. Horn Negative)

    For the horns set up two new clean frame earths
    Oh Great and Wise Deity, Grant me the serenity to accept the things I cannot change,

    Courage to change the things I can! And the wisdom to know the difference!

  4. #4
    Subscriber Click here to find out how to Subscribe
    Join Date
    Oct 2014
    Location
    Cork, Ireland
    Posts
    180
    That’s exactly what I did... just went out and double checked... I’m completely lost!

    Iv just put back in the original horn, managed to solder in 2 wires to the original plug so I’m gaining up!

  5. #5
    Senior Member
    Join Date
    Aug 2006
    Location
    suffolk
    Posts
    313
    Try another relay?

    Tom

  6. #6
    Subscriber Click here to find out how to Subscribe
    Join Date
    Apr 2017
    Location
    Manchester UK
    Posts
    3,101
    Sounds like you have it wired incorrectly, do you have a volt meter to test you wiring?
    If so disconnect the horns
    1: test the live from your horn switch is actually activating the relay.[it should read 12v+ when pressed]
    2: Test you are getting a positive [live] from the relay to the horn wiring when your press the button [it should read 12v+ when pressed]
    3: Remove the live feed in-line fuse from the battery lead that you just installed and test live to the horns again [it should read zero] to ensure your not taking the live from the OEM bike wiring to power the horns [which sounds like what is happening]
    Caution : May stop suddenly

  7. #7
    Subscriber Click here to find out how to Subscribe
    Join Date
    Oct 2014
    Location
    Cork, Ireland
    Posts
    180
    I gave up on this and the bike it traded now...

    I was a qualified electrician in another life so I really was only checking.

    It was definitely wired correctly, replaced fuse holders, relays etc. Unrated the wire.
    Got second and 3 Rd opinions... but still no go...

    One if the mysteries of electricity!!!

  8. #8
    Subscriber Click here to find out how to Subscribe
    Join Date
    Aug 2017
    Location
    Black Forest
    Posts
    4,589

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Anyone attending a Ride Out or Event organised through the UKGSer Forums does so at their own risk.
UKGSer.com or anyone organising an event posted here will not be held responsible in any way for damage or personal injury sustained while attending any such events.

Members attending any such event do so at their own risk.

The text, images, graphics, sound files, animation files, video files, and their arrangement on this Website are all subject to copyright and other intellectual property protection. These objects may not be copied for commercial use or distribution, nor may these objects be modified or reposted to other sites without prior written permission.

Disclaimer: Use or depiction of the BMW logo or trademark throughout this web site is for illustrative and editorial purposes only, and to the benefit of the trademark owner, with no intention of infringement of the trademark.

The UKGSer Forums may include adult content for which it cannot be held responsible. Your use of this website constitutes acceptance of the UKGSER network privacy policy

"Its about being a grown up hooligan - and if that means a dark visor, remus open pipe and a bit of speeding out of town then all well and good"