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87 xl jug on 88 xr 250

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i know the bore is bigger and thejug is shorter but is this to short that the compression and clearance is to much any help on this will be gladly accepted

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i just bored out a xr jug on my XL250R. same height on both cylinders. Bore is the only difference.

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did you use the the xl or the xr piston iam going to bore to 77 mm with this i think i will look into a kit from xrs only ithink this maybe the cheapest route and maybe a 1st stage hot cam has any one had this set up

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