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ZXR 250 A not revving out ?

Discussion in 'Kawasaki 250cc In-line 4's' started by Minimata, May 19, 2014.

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  1. cal

    cal Well-Known Member Premium Member

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    should be doing 7.0L/100KM :/
     
    cal, Jun 9, 2014
    #41
  2. Minimata

    Minimata Active Member

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    Nice one Cal.

    Went for a good run on Zxr today. Runs smooth with what seems a better spread of power since taking air mix out to 3.25 turns. Hitting 13000 with little difficulty, although happiest coasting along at 10000. Noticed that trying to give full throttle is more limiting than giving just 5/6 throttle so maybe over fuelling at full throttle.

    Next step will be seeing what effect baffle removal has on running.........and if makes no difference then seeing what taking air mix out to 4 turns does for running......must look a plug condition too!

    Really enjoying trial and error approach to tuning. I won't be sandblasting or pipe changing mind you...

    Fuel system is in good nick as tank cleaned out, carbs cleaned through and all vac hoses leak sealed.

    Ringing a man about in frame cam chain replacement tomoz.
     
    Minimata, Jun 9, 2014
    #42
  3. Th3_Huntsman

    Th3_Huntsman Senior Member Contributing Member

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    Hey cal FYI he said 14 km per litre of fuel, so it is running at about 7L per 100km also that's abit high for a 250 mines running 5.4L per 100km
     
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    Th3_Huntsman, Jun 9, 2014
    #43
  4. ajverma

    ajverma Active Member Premium Member

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    I feel like I should be worried about my bike with all the consumption figures on here, I get 3.5L/100km :idk:

    I get 5L on a bike with 3x the displacement!

    Must be riding style?! :idk:
     
    ajverma, Jun 10, 2014
    #44
  5. Th3_Huntsman

    Th3_Huntsman Senior Member Contributing Member

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    What do you weigh AJ? I weigh 90kg, and thrash it for 5.4l, I'm talking 120km/h at 11k rpm
     
    Last edited: Jun 10, 2014
    Th3_Huntsman, Jun 10, 2014
    #45
  6. ajverma

    ajverma Active Member Premium Member

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    Similar figures!

    Except I barely used to get above 10k except on highways :oops:

    Exhaust being too loud is a factor in that haha!
     
    ajverma, Jun 10, 2014
    #46
  7. Russky

    Russky Careful, man, there's a beverage here! Premium Member Contributing Member

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    Might be running a little rich with the pipe no?
     
    Russky, Jun 10, 2014
    #47
  8. cal

    cal Well-Known Member Premium Member

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    ahhh true true, my reading is slightly hindered when im on the red wine it seems ;)
     
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    cal, Jun 10, 2014
    #48
  9. Th3_Huntsman

    Th3_Huntsman Senior Member Contributing Member

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    Red wine has that affect on many of us ;)
     
    Th3_Huntsman, Jun 10, 2014
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  10. Minimata

    Minimata Active Member

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    Well I didn't expect that........

    I thought taking out Mr Baffle from the can would increase flow and lean out my mixture a bit. Didn't get much chance to find out as all low range power and torque evaporates without it in.

    Baffle back in as my ears hurt too much as well.

    Plug colour by the way is light grey/brown which seems ok.

    I think I will spend the next few weeks just riding.
     
    Minimata, Jun 12, 2014
    #50
  11. cal

    cal Well-Known Member Premium Member

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    not enough back-pressure it seems, interesting.. bigger jets then re setting the pilot screw mix could also be intersting
     
    cal, Jun 13, 2014
    #51
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