1993-2000 Honda TRX300EX Service Manual, Page 81Get this manual
Cylinder HeadCylinderPiston
Cyinder Head DisassemblyAssembly
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[5 ;;"' (page 1-161
Mark aM parts during disassembly so they can be placed back their original positionRemove carbon deposits from the combustion chamber and clean off the head gasket surface, before assemblyAvoid damaging the gasket surfaceValve guide replacement see section of the Common Service Manual
Requisite Service
Cylinder head removalinstallation (page 7-101
Procedure DbassemlXy Order Insulator O-ring Valve cotter