1986-1988 Honda TRX 200SX Fourtrax Service Manual, Page 60Get this manual
CYLINDER HEADV ALVES INSPECTION Cvlinder head Check the spark plug hole and valve areas for cracksCheck th cyl inder head for warpage with straight edge and feeler gauge
SERVICE LIMIT: 0.10 mm (0 .004 in)
Valve springs Measure the free length of the inner and outer valve sprmgs
SERVICE LIMITSINNER liNEX)YellowWhiteOUTER tiNEX)YellowWhiteNOTE
29 .5 30 .5 36 .5 35 .0
mm mm mm mm
(1.16 11.20 11 .44 (1 .38
in) in) in) in)