Thick Cylinder Head Gasket

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Lamaddict
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I know we are suggested to always set the squish under 1.5 bug not under 1, but why did Innocenti, SIL and Servetta use such large head gaskets that give a massive squish? Those manufacturers still made the 200's that ran well/fast etc.
Lamaddict
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Any ideas why?
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Architecten
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Main scooter: Allwyn Pushpak GP125 (RT200)
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Something to do with modern fuel?
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wack 63
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Main scooter: '71 GP TS1
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Probably to do with machining tolerances. Hundreds of barrels and pistons all with slight differences in machining so bang on a thick gasket to be sure of no contact. Remember the motors weren't built for performance.
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