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15-08-2008, 02:35 PM
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#1 (permalink)
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Join Date: Apr 2006
Posts: 102
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ZX6r lost power
I have a 1995 ZX6R with 78k on the clock. Been a great bike however the other day it suddenly stopped responding to throttle. I can get upto 80k on the flat but any more is not possible. When I open the throttle it just sounds like c__p and makes no power. Still idles fine and mild acceleration is fine.
Ideas?
Its either carbs but all 4 carbs becoming contaminated does not make sense? or could it be ignition?
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15-08-2008, 02:38 PM
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#2 (permalink)
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03 zx636 , Cagiva Mito, X7
Join Date: Jul 2006
Location: Hamersley
Posts: 1,721
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Id check the usual first, carbs airfilter and fuel filter, my monies on the fuel filter
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I can do anything I want, because i look good in Leather"
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15-08-2008, 02:40 PM
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#3 (permalink)
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Cagiva Mito
Join Date: Jun 2005
Location: Perth, NOR
Posts: 923
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check the boots that hold the carbs onto the head. could have perished and split, thus leak worse off idle
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15-08-2008, 02:41 PM
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#4 (permalink)
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Join Date: May 2006
Location: PSB Café
Posts: 4,109
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airfilter/pipes.
clean carbs.
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15-08-2008, 02:48 PM
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#5 (permalink)
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Join Date: Mar 2003
Location: The PSB Café
Posts: 8,031
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change the badging to "SUZUKI" and it'll run perfect
Dubs
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In Dubs We Trust
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15-08-2008, 03:02 PM
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#6 (permalink)
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98 R1 - Blue Goodness
Join Date: May 2006
Location: Perth, NOR
Posts: 2,093
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Does sound carb related to me (blocked jet perhaps). Grab yourself a can of carb cleaner and get to work on it (clean the air filter whilst you are at it).
I would probably consider changing the plugs as well, could be misfiring under load due to poor spark due to a fouled plug.
Changing the fuel filter is probably a good idea too.
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"At the start of the season, you can’t win the championship in the first round, but you can lose it. The goal is not to lose it.” - Travis Pastrana
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15-08-2008, 03:04 PM
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#7 (permalink)
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Ducati 1098S
Join Date: Mar 2008
Location: Southern River
Posts: 464
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Fuel filter would be my first guess.
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15-08-2008, 03:47 PM
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#8 (permalink)
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Join Date: Apr 2006
Posts: 102
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Guessing not fuel supply. Usually you can open it up untill the floats run dry then it starts to die. This is cruising at 30km/h (no load). I can open it up a little and its fine but its like as soon as the throttle hits 50% (secondaries on carb?) that it just chokes and dies. Like a kill switch.
Split runner would only effect one cylinder?
Carb contamination would also effect only one cylinder. All the cylinders are failing.
at 80km/h its seems fine. Its just hard to accelerate above that with out hitting that magic throttle setting.
Its almost like the spark has got really weak and either high throttle or RPM is blow the spark out. Heavy acceleration causes the mixture to richen which further loads the ignition.
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15-08-2008, 04:02 PM
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#9 (permalink)
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Jota | TZ350 | T160V | 'Storm
Join Date: Dec 2003
Location: The Future
Posts: 2,482
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An electrical fault, perhaps. This may explain why it occurs under load.
S.
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