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Flashing fuel light suppressor/patch

Discussion in 'Norton Motorcycles (Modern)' started by Britfan60, Aug 8, 2019.

  1. Britfan60

    Britfan60 VIP MEMBER

    Joined:
    Jan 5, 2014
    Got the wire. How do I hook it up. No diagrams. Battery - terminal to where??
    It used to flash intermittently with the old headlight bucket, but rare. New healight, didn't flash at all for a season. Now its flashing every time I turn on the headlight and especially in synch with my directional.
    Thanks in advance
     
  2. Nortie

    Nortie

    Joined:
    Dec 21, 2015
    Don't know about connection but mine used to flash , changed my headlight for a LED type wich didn't leave room for all the wiring in the shell . So repositioned them outside , guess what no more flashing
     
  3. TonyA

    TonyA VIP MEMBER

    Joined:
    Jan 16, 2015
    Is this the flashing fuel light or neutral light issue ? Either way it involves a resistor as well in the kit along with the wire correct ? Didn't you get a resistor as well ? This will be used to "pull up" the effected circuit. So resistor must connect between a +12V source and the wire that goes to the circuit you are fixing.
     
  4. Britfan60

    Britfan60 VIP MEMBER

    Joined:
    Jan 5, 2014
    Nortie. Exactly. The flashing disappeared when I changed the headlight and had to leave some of the wiring outside...temporarily. Now it flashes with any interference.
    Tony. No resistor. AF1 sent me one, a thin wire with a terminal end and a thin spade connector, no resistor with a diagram the size of a business card. I lost that while the leg was broke and bike was at the shop for 7 months.
    Norton sent me another one. A little more substantial gauge. No diagram, no resistor.
     
  5. TonyA

    TonyA VIP MEMBER

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    Jan 16, 2015
    The resistor may be in the wire then ? Put a ohm meter on it and check . What flashing are you having , fuel light ?
     
  6. TonyA

    TonyA VIP MEMBER

    Joined:
    Jan 16, 2015
    If you have no resistor in the wire you better email Max at Norton and ask .
     
    Britfan60 likes this.
  7. Britfan60

    Britfan60 VIP MEMBER

    Joined:
    Jan 5, 2014
    Haven't a fair amount been installed by forum members? As previously mentioned, AF1 sent me one while I was minding a broken leg and I lost it. It had a small diagram included. No resistor on that one either. I'll post a photo.
     
  8. Max Muller

    Max Muller

    Joined:
    May 13, 2019
    There should be a Resistor built into the cable. Goes from Batt + to pin 3 of the Fuel w/l relay
     
    Britfan60 likes this.
  9. Britfan60

    Britfan60 VIP MEMBER

    Joined:
    Jan 5, 2014
    My bad, fellas. There is a resistor built into it. Such a small diameter and under the insulation, I missed it. Took it out of the bag and inspected it. Thanks Max.
     
  10. nopdog

    nopdog VIP MEMBER

    Joined:
    Apr 24, 2017
    Britfan
    I’ve just done mine .
    Simple plug and play.
    Positive terminal to fuel relay which is under the tank and on top of the frame.
    If you want message me your email and I’ll send you the diagram I received from Norton.
    Simon
     
    Britfan60 likes this.
  11. Britfan60

    Britfan60 VIP MEMBER

    Joined:
    Jan 5, 2014
    I have the tank off, Simon. Thanks. I'll be ok.
     
  12. Britfan60

    Britfan60 VIP MEMBER

    Joined:
    Jan 5, 2014
    I only have a one relay, left side on my frame. Why is it different from Richard P. ? What changes were made from '13 to '15? There is on available male connector on that relay. Safe to assume that's the one I need? Its in the middle of two occupied connectors, white plastic.
    Norton relay.jpg
     
  13. Britfan60

    Britfan60 VIP MEMBER

    Joined:
    Jan 5, 2014
    Norton fuel relay.jpg Norton relay diagram.jpg


    I know this is plug and play and supposed to be easy, but besides half a brain, what am I missing? The photo shows my current set up. The diagram shows what seems to be the #3 connector to be occupied. Do I simply replace it with the new patch with the resistor? The patch connector has dual male/female connector I assume to plug the BY wire back onto it. Too bad there's not enough room to do that. sigh. Time to cut.
     
    Last edited: Aug 16, 2019
  14. Sdonders

    Sdonders VIP MEMBER

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    Sep 30, 2017
    Hi, I did the same but just by placing a resistor, I used 10k, connecting this line to the 12v of the battery. The thing is that due to whatever interference the line picks up some inductance might occur. This might let the fuel light flash. The resistance makes sure that no accumulation occurs but also that it doesn’t influence the original circuit.
    So it’s normally called a pull-up resistor which shortcuts the system with a specified resistance to drain the accumulated energy.

    To answer your question, the resistor and the original line should be connected to the relay contact. And yes it’s a bit a fight with space, but it fits without cutting wires.
    Success.
     
  15. Britfan60

    Britfan60 VIP MEMBER

    Joined:
    Jan 5, 2014
    Yea...I fiddled and bent. It sure is tight. Worried I was going to hear "snap" and break the male connector off of the relay or the resistor. That would have caused me to load the bike onto the boat, cruise out 10 nautical miles and add it to the reef.
     
  16. Deano

    Deano

    Joined:
    Jul 24, 2019
    Hi all,

    This thread popped up when I searched 'flashing fuel light' as I have that issue with my 2014 961. I'm struggling to make sense of what's been said already, so I may've missed something along the way :confused: but is there a straightforward fix to this problem? I've currently got the tank off & if there's an easy fix I'd like to do it before I put the bike back together. My bike has an occasional flickering low fuel light, even when the tank is full.

    Cheers.
     
  17. TonyA

    TonyA VIP MEMBER

    Joined:
    Jan 16, 2015
    Guys , The warning light turn on signal is a "low" or ground . When the bike is running ignition pulses and other electrical spikes can be seen as a "low" by the low fuel instument light. The pull up resistor provides a stable source of voltage (12V) to the low fuel light circuit to keep it off until the real "low" is provided by the low fuel relay . The resistor protects the circuit from severe overload which will occur without it ! This patch can be installed anywhere on that line leading to the low fuel light , even in the instrument cluster. The original wire must be maintained from relay pin 3 to the instument warning light . In my view the reason Norton is using the slide connector is because they don't trust the average person to skin and solder the wires . How many K ohms is the resistor Norton sent 1K ?
     
    Last edited: Aug 19, 2019
  18. TonyA

    TonyA VIP MEMBER

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    Jan 16, 2015
    The patch connector has dual male/female connector I assume to plug the BY wire back onto it. Too bad there's not enough room to do that. sigh. Time to cut. Yes .
     
  19. Deano

    Deano

    Joined:
    Jul 24, 2019
    Tony/all,

    I'm still struggling to make sense of exactly what I need to do here to prevent my fuel light from flashing. I understand the basic concept of adding a resistor into a circuit, either by piggy-backing onto a terminal and connecting the other end to earth, or by adding a resistor in line on a wire. What I'm not sure of here is which wire or terminal to connect the resistor to and where to connect the other end (ie: to earth or back onto a terminal etc). Also, am I correct in believing that 1Kohm is required, and if so, what wattage resistor is needed please?

    Any further help would be very much gratefully received, thanks.! :)
     
  20. TonyA

    TonyA VIP MEMBER

    Joined:
    Jan 16, 2015
    You will connect the patch cable with the 1K resistor in it between pin3 (BY black-yellow) of low fuel light relay to (Battery + positve 12V) terminal. Both the original BY wire and the patch wire go to this terminal 3 of the relay ,. So either use the piggy back terminal connector or cut and splice it in. Both patch wire and BY wire must connect to pin 3 of this relay . Connect those wires together there at pin 3 of the relay however you can. A crimp splice can also be used there at the BY wire. In other words leave BY connected to the relay pin 3 and then connect the patch wire to the BY wire close to that spot. The other end of the patch wire then goes to the battery + terminal. I think Norton supply you with a piggy back slide connector for this purpose . The piggy back slide connector should allow you to connect two quick slide female wires to a single quickslide male on the relay. Britfan60 said he didn't have enough room , but you will see. You can do it !
     
    Last edited: Aug 22, 2019
    Sdonders likes this.

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