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Zxr400sp restricted ignition box!

Posted: Fri Nov 24, 2017 8:14 am
by Zxr400paul
Hi all, I’m new to this site and was wondering if anyone has had issues running a zxr400 sp ignition box before, I have the correct rotor for the box and the bikes makes good power up to 12,000rpm but then it just dies off, I have been told that some sp ignition boxes are restricted, was wondering if anyone could enlighten me any more, before I end up pulling the rest of my hair out! :smt011 many thanks Paul.