2001-2005 Honda TRX250EX Sportrax TRX250EX Factory Service Manual, Page 98Get this manual
CYLINDER HEADVALVE VALVE SPRING Measure the valve spring free lengthSERVICE LIMITS: Inner: 41 .2 mm 11.62 in) Outer: 43.0 mm 11.69 in)
VAlVEVAlVE GUIDE
Check the valve moves smoothly in the guideCheck the valve for bending, burning or abnormal wearMeasure each valve stem 0.0and record it
SERVICE LIMITS: IN: 5.45 mm 10.215 inl EX: 5.43 mm (0.214 in)
Ream the valve guide to remove any carbon build-up before measuring the guideInsert the reamer from 1he combustion chamber side of the cylinder head and always rotat the reamer clockwiseTOOLS:
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