1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

Fast Idleing / Hunting

Discussion in 'Norton Motorcycles (Modern)' started by Kiwi961, Oct 13, 2017.

  1. mentalrental

    mentalrental

    Joined:
    Dec 15, 2016
    Got mine.
     
    richard-7 likes this.
  2. Britfan60

    Britfan60 VIP MEMBER

    Joined:
    Jan 5, 2014
    Just ordered the last 2. Sorry.
     
  3. Fast Eddie

    Fast Eddie VIP MEMBER

    Joined:
    Oct 4, 2013
    That would never have happened in the good old days, a proper storeman would have said: “Can’t let you have ‘em... they’re the last ones... if I let you have ‘em there’ll be none left... now sod off...”!
     
    Britfan60 likes this.
  4. BritTwit

    BritTwit

    Joined:
    Aug 25, 2009
    The way these units flew off the shelves and out the door at eBay, you can bet those folks will be making a whole new crop for sale really soon.;)
     
    richard-7 likes this.
  5. patchy-man

    patchy-man

    Joined:
    Sep 23, 2016
    Does anyone know the correct thread/size of the stainless blanking plugs when removing the exhaust front pipe oxygen sensors ?
     
  6. TonyA

    TonyA VIP MEMBER

    Joined:
    Jan 16, 2015
    M12 x 1.25 pitch
     
    Last edited: Apr 10, 2018
  7. nopdog

    nopdog VIP MEMBER

    Joined:
    Apr 24, 2017
    Don't know if this is the correct thread but need some help.
    Installed the decat and shorties, bike ran ok but very rich.
    Did the lambada delete and bike ran crap. Reconnected the 02 sensors.
    Sent the ECU away for mapping. Its the OMEX type.
    Bike now runs extremely well, richness cured, idles great on startup etc.
    BUT..
    Sometimes the bike hunts at idle only about 200rpm sometimes slightly more. Shut the bike down and restart its fine or continue riding and it goes away.
    From what I've gathered this hunting may be cured by the lambada delete.
    But I think it was Richard who told me that the lambada delete may not work so well with the Omex ECU.
    Or do the so called idle screw. (it was done before and was fine prior to the remapping)

    I'm thinking of trying the lambada delete again and resetting the so called idle screw but am hoping that the collective brains trust may have information on a remedy.
    Thanks
    Simon
     
  8. nopdog

    nopdog VIP MEMBER

    Joined:
    Apr 24, 2017
    Don't know if this is the correct thread but need some help.
    Installed the decat and shorties, bike ran ok but very rich.
    Did the lambada delete and bike ran crap. Reconnected the 02 sensors.
    Sent the ECU away for mapping. Its the OMEX type.
    Bike now runs extremely well, richness cured, idles great on startup etc.
    BUT..
    Sometimes the bike hunts at idle only about 200rpm sometimes slightly more. Shut the bike down and restart its fine or continue riding and it goes away.
    From what I've gathered this hunting may be cured by the lambada delete.
    But I think it was Richard who told me that the lambada delete may not work so well with the Omex ECU.
    Or do the so called idle screw. (it was done before and was fine prior to the remapping)

    I'm thinking of trying the lambada delete again and resetting the so called idle screw but am hoping that the collective brains trust may have information on a remedy.
    Thanks
    Simon
     
  9. TonyA

    TonyA VIP MEMBER

    Joined:
    Jan 16, 2015
    The Euro4 Omex has different mapping and wiring is different. Do You have a 2015 or 2016 with the pre Euro4 Omex ? The O2 deletes take care of the flat spot when cruising at the 3000 rpm range. I have the SC ECU . I still have some reluctance to idle at 1200-1300 when its first warmed up. Once the bike is fully warmed up and has been re-set (turned off and restarted) , I get good idle . Only 200 RPM of hunt is not so bad and you are very close. I can get periods of 1800 RPM (hang) during this initial warm up period. Be sure you have ridden the bike enough to know how it is really running , then give the O2 deletes a try. The only thing the O2 deletes can fix are the issues caused by the O2 sensors , the rest of the Norton 961 quirks will still be there.
     
  10. nopdog

    nopdog VIP MEMBER

    Joined:
    Apr 24, 2017
    Thanks Tony good advise I think.
    Mines a June 2014.
    I’ll ride it some more before retrying the lambada delete.
    But that god dam work is getting in the way at the moment.
     
  11. TonyA

    TonyA VIP MEMBER

    Joined:
    Jan 16, 2015
    Well you have an SC ECU then I think. So the O2 sensor deletes will work OK. Just leave the O2 sensors screwed into the exhaust pipes when you try the resistor plugs , then you can switch back if you want to. Not real easy because you need to pull the gas tank , but not too bad about 60 mins total. I have been running without O2 sensors for a month now nearing 1000 miles so far and all is OK. I am getting ready for a longish ride soon and I have already plugged off the exhaust pipes. I think I had a bad O2 sensor in my right hand pipe. When I did the work at Coote's I noticed a lot more carbon deposits in that cylinder. So make a long story short I have purchased a new set of O2 sensors and I will not be installing them now. IF down the road I need too replace my SC ECU and I am told that This requires working O2 sensors then I will have them . I have been doing several shake down runs and MPG has been as low as 43.3 and as high as 46.5 US Gallons , at 70 to 75 mph. Unfortunately there is going to be a bunch of superslab (expressway) between here and the Moutain Road called the Dragons Tail . I will take 2 liters of gas along in case I run out. This is always a problem when you are running with bigger bikes (big gas tank bikes) FJR , BMW , Honda etc . I think I am good for 150 miles at 70 mph . I just did a 145 mile run a steady 70 to 75 mph and put in 3.28 US Gallons . Now if Raphi is right and I can get to 3.5 gallons....
     
    Raphi likes this.
  12. nopdog

    nopdog VIP MEMBER

    Joined:
    Apr 24, 2017
    Understood and thanks. My right hand cylinder/pipe is the same. I thought it was the firing sequence it seems to run hotter than left cylinder. If I could ask what 02 censors did you purchase as stand by.
     
  13. richard-7

    richard-7

    Joined:
    Feb 24, 2014
  14. Greg Revell

    Greg Revell

    Joined:
    Aug 7, 2018
    Check that the throttle stop screw hasent wound itself in. The factory chose not to use a locknut only a dimple in the throttle body on the screw. Mine had slowly wound in and i spent weeks doing all the upgrades and finally as soon as i reset the screw its all fixed. At least have all the upgraded sensors coils leads etc done. Cheers
     
  15. Britfan60

    Britfan60 VIP MEMBER

    Joined:
    Jan 5, 2014
    Yea. Mine got stuck on 2400 rpm yesterday. Average rpm 1800 when hot. I am sure the dealership put 77 back in the ecu last year. I didn't have these problems with 91. Thought the O2 sensor bypass would cure that. It didn't.
     
  16. TonyA

    TonyA VIP MEMBER

    Joined:
    Jan 16, 2015
    Are you going to try the IAC blocking plug and idle screw setting when hot like Richard-7 ?
     
    Last edited: Oct 14, 2018 at 7:36 PM
Loading...