Hunting Idle - Yoshi R77

Discussion in 'Mods, Upgrades, Accessories and Products' started by Mr OCD, Feb 6, 2015.

  1. Mr OCD

    Mr OCD Well-Known Member

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    Anyone know how much fuel to add to the power commander at 0% throttle to resolve the hunting idle?

    I've dialed in '3' which has helped but its still not quite right.

    Ideas?
     
  2. Mr OCD

    Mr OCD Well-Known Member

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    Figured it out you useless gits ;)
     
  3. Barstewardsquad

    Barstewardsquad God Like

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    and the answer was? :p
     
  4. Mr OCD

    Mr OCD Well-Known Member

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    Go and work it out yourself... nobody else bothered to help!

    :p :D
     
  5. Freedom of choice

    Freedom of choice Elite Member

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    I wouldn't say they are useless , the other part however...........
     
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  6. Cookie42

    Cookie42 Active Member

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    Hi ocd , could you send me a copy of your map to try on my bike. I've got the hunting idle with a r77 fitted.

    I just want something to tide me over until I get a custom map done

    Would you recommend fwd ?

    Thanks.
     
  7. Hudson

    Hudson Active Member

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    Have you considered ringing Richard at Dynojet uk in preston ? I had my PCV fitted to my CB1000R and a custom map done by Richard and its just perfect, all the hunting at idle, surging at a constant throttle etc has gone for good.... he expained what and how he did it all... went right over my head, but he knows his stuff !
     
  8. Mr OCD

    Mr OCD Well-Known Member

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    Already spoke to them mate hence its sorted now. The bike is going back to Frank or Richard very soon ;)
     
  9. Mr OCD

    Mr OCD Well-Known Member

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    Send me email address.

    Yep I recommend FWD highly ... They have sorted all my bikes and always been spot on.
     
  10. Mr OCD

    Mr OCD Well-Known Member

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  11. ccr32

    ccr32 Active Member

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    Ahh, come on! I was wondering what to dial in myself to fix the same issue on mine :)
     
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  12. Mr OCD

    Mr OCD Well-Known Member

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    :D
     
  13. Si.

    Si. God Like

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    can you mail me the settings for the low down idle please dude?
     
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  14. Mr OCD

    Mr OCD Well-Known Member

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    Basically if you have a power commander fitted you need to raise the fueling at 0% throttle due to lack of back pressure in the exhaust.

    Adding fuel between 750-1500rpm is where you need it. I started with 3 in these rpm blocks but landed up at 10 after speaking to a tuner.

    The video is with them set at 10... You may get away with less so a bit of trial and error is needed :)
     
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  15. Gilesy

    Gilesy Elite Member

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    great idea.. I have the same hunting issue due to the race exhaust..
     
    #15 Gilesy, Feb 7, 2015
    Last edited: Feb 8, 2015
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  16. ccr32

    ccr32 Active Member

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    Are you running the Yoshi with or without the baffle Scott?
     
  17. Mr OCD

    Mr OCD Well-Known Member

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    Without baffle ;)
     
  18. ccr32

    ccr32 Active Member

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    Thanks for the tips before - given it a go with mine this evening to not much avail I'm afraid. Tried adjusting those rpm blocks in 3 point increments from -10 to +10, and the richer I make it (+10) the worse it seems to run.

    Now it's stopped and I'm sat out here with the bike, smells very fuelly and rich! So maybe that is my problem...

    I also inadvertently hit reset on the throttle calibration window too which meant winding it to the stop whilst running to readjust... sorry neighbours, oops!

    Anyone know what the Duty % means? I've noticed mine is always around 2 at idle but can't find anything in the PCV help files that tells me what that means...
     
  19. Mr OCD

    Mr OCD Well-Known Member

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    Fuel Duty simply means % of injector capacity ... Nothing to worry about unless goes above 90% duty which on a NA engine is very unlikely.

    +10 is rich definitely ... I've actually turned mine down to +6 now. It's worth noting fueling doesn't stabilize straight away but can take a few a couple of runs ... I've no idea why either!
     
  20. ccr32

    ccr32 Active Member

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    Huh... maybe I shouldn't have been so hasty in putting the standard Yoshi PC map back on then! To be fair, it's not that bad anyway, I'm just being a tart about it.

    I'll just do what I'm sure someone will recommend to me in a minute - book it on a dyno then JFRI! :)
     

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