2006-2014 Honda FourTrax ATV TRX250 EX TRX250X Service Manual, Page 135Get this manual
CYLINDER HEADVALVECAMSHAFT
CYLINDER HEAD INSTALLATION
Be careful not to damage the mating surfaces
Clean the mating surfaces of the cylinder head and cylinder thoroughlyBlowout the oil passage in the cylinder head with compressed airInstall the dowel pins and new gasket
Install the cylinder head onto the cylinderApply engine oil to the threads and seating surfaces of the cylinder head nuts and install them with the washersInstall the two boltsTighten the four nuts in crisscross pattern in several stepsTORQUE: 30 Nm (3.1 kgfm, 22 Ibfftl Tighten the bolts securely