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If I have a Blaster 200 that is bored 20 over what size is the engine now?

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If I have a Blaster 200 that is bored 20 over what size is the engine now?

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  1. the same you have a 200 that is 20 over


  2. Cylinder volume formula: bore x bore x stroke x .7854

    Factory bore and stroke:  66mm x 57mm

    Factory displacement:  195cc

    New bore size:  66mm plus .508mm (.020")

    New cylinder volume:  66.51 x 66.51 x 57 x .7854 = 198.033

    New displacement:  198cc
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