1981-1984 Official Honda ATC250R Shop Manual, Page 93Get this manual

ATe 250R Measure the 0.0of the mainshaft and countershaft
KICKSTARTERTRANSM ISSIONCRANKSHAFT

STANDARD:

27.959-27.980mm 24.959-24.980mm 19.979-20.000mm 24.959-24.980mm 24.979-25.000mm

(1.1007-1.1016in) (0.98260.9835 in) (0.7866-0.7874 in) (0.9826-0.9835 in) (0.9834-0.9843 in) in) in) in) in) in)

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