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The Lambda Delete Thread

Discussion in 'Norton Motorcycles (Modern)' started by richard-7, Apr 18, 2018.

  1. BLIGHTYBRIT/SF

    BLIGHTYBRIT/SF VIP MEMBER

    Joined:
    Feb 28, 2016
    So mine are finally in,straightforward job,plugged them in under tank,I left the sensors in the exhausts ,taped up the end connectors, I always thought my bike did run ok, apart from when I had the lambda sensors played up which were replaced under warranty ,I got the odd cough & splutter, when at low revs & slow moving traffic.Not any more ,smoothed it right out , 2016 bike with short stubbies on & decat pipe,so all good & I’m quite surprised at the difference it makes ,whilst doing the job I investigated my lob sided tank that just occurred in the last week,the left had support has broken clean off the craddle that holds the ign coil & battery,I think this may be a one off I hope, as I have carried excessive weight in my tank bag for most of the 15,000 Miles the bike has done,excessive means a 2 kg padlock & toolkit & muchmore possibly up to 10kg , so I guess this has helped put a strain on the bracket,however I’ll inform Norton central next week to bring it to their attention ,not to moan but keep them in loop of this occurrence .I’ll start another thread on how I’m going to fix it, wedged some padding between airbox & tank atm , so just to recap , these resistor s to link out the lambda sensors really do make the bike run better .
     
    MxMartin likes this.
  2. TonyA

    TonyA VIP MEMBER

    Joined:
    Jan 16, 2015
    Good Report Richard. I talked to David Coote about the coils hanger tank bracket. He thought then that this is a weak point and will break. So maybe Norton have designed one that is better. Yours can be welded or brazed for sure and with some thought can be improved as well ?

    I can also say that I have tested my fuel mileage extensively and am pleased to report that I am happy with it. In fact if a O2 sensor goes bad it hurts the fuel mileage not help it !
    From my 2000 mile trip : in US miles per gallon with iphone gps tested mph
    64 to 68 mph = 53.5 mpg
    70 to 75 mph = 43.5 mpg
    80 to 85 mph = 45.5 mpg

    Yes , that's right folks , It's gets better at 80 to 85 then 70 to 75 !! And that's full load side bags , tank bag , tail pack and geared up . Who said a Norton 961 ain't a touring bike ?
     
    Last edited: Jul 7, 2018
  3. lcrken

    lcrken VIP MEMBER

    Joined:
    Mar 15, 2009
    Thanks, guys, I'll look again when I have the tank off, but I thought I looked pretty carefully last night. The wires from the lambda sensors feed into the main wire harness at the front of the fuel tank, which appears to be wrapped in tape all the way back to the ECU. So it looks to me like replacing the sensors would require some serious surgery on the wiring harness. But I could have missed something, and will look again.

    Ken
     
  4. TonyA

    TonyA VIP MEMBER

    Joined:
    Jan 16, 2015
    [​IMG]

    Hard to see in there, better look again.
     
    BLIGHTYBRIT/SF likes this.
  5. lcrken

    lcrken VIP MEMBER

    Joined:
    Mar 15, 2009
    Well, not surprisingly, you and Paul were correct. They are there, just very well hidden.

    Ken
     
    Last edited: Jul 9, 2018
  6. MxMartin

    MxMartin

    Joined:
    Nov 13, 2017
    Did you use the resistor plugs as per the ebay listing?

    I also had a lop sided tank but when I checked mine the two bolts at the front had come loose and almost lost to the road. I have had the tank off a few times and have been reluctant to tighten these bolts in case I stripped them, so no doubt was my fault, glad I checked in time.
     
  7. BLIGHTYBRIT/SF

    BLIGHTYBRIT/SF VIP MEMBER

    Joined:
    Feb 28, 2016
    Yes Mark, I used the one s from the eBay link,whipping the tank of again Tom to repair the coil/ battery cradle.
     

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