TGB Blade 250 ATV Quad Service Repair Manual, Page 72Get this manual

TGB Blade 250 ATV Quad Service Repair Manual, Page 72

6CYLINDER HEADNALVE Valve guide Caution Before measuring the valve guide, clean carbon deposits with reamerTool: 5.0 mm valve
IN+O.08 mm EX+O.10 mm Caution exceeded service limit, check whether the new clearance that only replaces new valve guide
is within service limit or notIf so, replace valve guideCorrect it with reamer after replacementIf clearance still exceeds
service limit after replaced valve guide, replace valve stem too Caution It has to correct valve seat when replacing valve