K1Racing - Worldwide parts supply for road racing motorcycles

2 stroke and 4 stroke engine rebuilds

06April 004
NSF250R Cylinder head leak test
Use K1Racing special leak gage bellow photo
Leak gage


06April 005
NSF250r Piston top

K1Racing recommends if STD engine 2300Km max to use piston,

if modify and high HP 1500~1800 Km other way bellow photo

NSF250R piston