1982-1983 Official Honda ATC 200E Big Red Shop Manual, Page 63Get this manual
ATC200E VALVE SPRING INSPECTION
Measure the fre length of the inner and outer valve springs STANDARDINNER39 .4mm(1.SSin) OUTER4S .Smm(1.79in) SERVICE LIMITS: INNER: 3S.Smm(1 .40in) OUTER41 .0mm(1 .61 in)
CYLINDER HEAD VALVES