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Old January 13th, 2020, 04:08 PM   #1
NovaS
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Squish

Does anyone know what the stock squish is for a 2009 ninja 250?

Thanks
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Old January 13th, 2020, 06:09 PM   #2
Ralgha
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What do you mean by "squish"?
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Old January 13th, 2020, 07:40 PM   #3
NovaS
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The distance between the piston and the outer rim of the head. Making the squish smaller by milling the head or base can increase compression ratio
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Old January 16th, 2020, 09:48 PM   #4
Dave Wolfe
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Mine measured .035", with .010 of that being the head gasket and the 025 balance from cylinder to piston crown.
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Old January 17th, 2020, 05:25 PM   #5
NovaS
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I'm guessing yours had some work done to it than. Mine is around 0.070
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