Thread: Has anyone measured the ACTUAL compression ratio?
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Old October 31st, 2014, 11:06 PM   #36
ninja250r81
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Name: scott
Location: australia
Join Date: Jan 2012

Motorcycle(s): 2012 ninja 250r se

Posts: 435
7:1 - 96psi
8:1 - 117psi
9:1 - 139psi
10:1 - 161psi
11:1 - 184psi
12:1 - 208psi

You allow 60% ve at cranking speed
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