Maintenance & Technical > KX500 Original

K5 piston measurement

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kaw rider:
Does anybody know of the size of a wiseco 86mm k5 piston at the buttom of the skirt, on a brand new piston. standard or metric measurement. Thanks

jfabmotorsports.com:
I just measured a new one. 3.3828 @ the bottom..front to back.

JFAB

stewart:
86 mm  is 3.3858   stock bore so that would  mean 3.3828  has .003  thou clearance wiseco says .004

martinfan30:
Whats the minimum clearance you could safely get away with with Wiseco?

stewart:
wiseco builds the right clearance in for 86  stock bore..since there skirts are tapered it would matter where it was checked at

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