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Adjusting runner length. ?'s and feedback
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January 11th, 2019, 04:27 PM
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Mohawk
ninjette.org guru
Name: Chris
Location: Bristol, UK
Join Date: Feb 2016
Motorcycle(s): ZZR250, VFR800
Posts: 478
You can always try this calculator
http://www.timeinthegarage.com/exhaust-calculator/
For the ZZR the numbers are Exhaust 66BBDC 26ATDC @14000rpm for a 125cc cylinder
For the Ninja 250R - 61BBDC 31ATDC @12000rpm for a 125cc cylinder
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