Question about 1998 kawasaki ZX-9R Ninja

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Runs lumpy at low revs, high revs o.k., zx9r 's'

Runs lumpy at low revs, high revs o.k., changed plugs ,coil res. check o.k

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  • stephen_mors Nov 15, 2009

    Carbs balanced, runs great over 4000 revs, but still not so good at lower revs.

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Check for vacuum leaks and vacuum balance carbs

Posted on Oct 03, 2009

Testimonial: "The solution was great and solved the problem at revs over 4000."

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And check the carb diaphragms...

Posted on Apr 21, 2012

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