Poor Running at Low RPM - Kawasaki Ninja 250R Forum
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post #1 of 6 (permalink) Old 07-29-2009, 05:32 PM Thread Starter
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Poor Running at Low RPM


I am working on my EX250. The bike will not idle without chock but seems to run fin at the higher RPMs. I removed carbs and cleaned them, the best I could do, with carb clearner. However, when I put everything back together I have the same problem. Any ideas out there???
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post #2 of 6 (permalink) Old 07-29-2009, 09:15 PM
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How are the spark plugs?
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post #3 of 6 (permalink) Old 07-31-2009, 01:44 PM
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Fresh gasoline?
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post #4 of 6 (permalink) Old 08-01-2009, 11:13 AM
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When was the last time that the valves have been checked / adjusted?
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post #5 of 6 (permalink) Old 08-04-2009, 10:01 AM
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I've covered this type of issue in the past... Sounds pretty common... To me I'm posting a links to a related topic...


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post #6 of 6 (permalink) Old 07-07-2010, 06:50 PM
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That is the effects of the timing retard, most likely.The effects are usually worse with after market exhaust that has not been fine-tuned, but even stock will have noticeable lag.It has been a few years, but the impression I got, back when I had the 2K ZX9,was the Dynojet kits were more generic,and did not like them because required drilling.By generic I mean they did not seem to do testing on the specific models.
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carbs, poor idle

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