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athena yz144 thoughts

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Has anyone machined the cylinder down to remove the o-ring grooves and then fit the new type multilayer head gasket.

What is the smallest squish clearence I can get away with?

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hi m8 i have the new style athena kit on my yz 125 and it totally rips i am in love with the little thing i will pm you the settings for the jetting and gearing just been really biz, will be riding a sand track tomorrow so see how it goes there , all in all i would recomend this mod to any one :thumbsup:

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