1985-1986 Honda Fourtrax 125 TRX125 Shop Manual, Page 75Get this manual
CYLINDER HEADIVALVES
VA LV SPR ING INSPECTION
Measure the free length of the inner and outer valve
springs,
SERVICE LIMITS ;
INNER29.9 mm (1.18 in) OUTER33.7 mm (1 .32 in)
VALVEIVALVE GUIDE INSPECTION
Inspect each valve for trueness, burning, scratches
or abnormal stem wear
Check the valve movement in the gu ideMeasure and record each valve stem 0.0 SERVICE LIMITSIN5.435 mm (0.2139 in)
5.415 mm (0.2132 in)
Measure and record the valve guide I.DSERVICE LIMIT: IN EX5.525 mm (0.2175 in)