2001-2006 Honda TRX 300EX Sportrax 300EX Factory Service Manual, Page 110Get this manual
CYLINDER HEADVAlVES ROCKER ARMSHAFT INSPECTION "any rrx:k6r ann requires servicing
Inspect the roc ker arms and sha fts for wear or dam
agoM easure each rocker arm .0
SERVICE LIMIT: 12.038 mm 739 in) 0
inspect the C8fI'I chipping (N lar
Measure each rocker arm lihaft .0 SERVICE LIMIT: 11 .92 mm (0.469 in )