1997-2004 Honda Fourtrax Recon TRX250TE/TM Service Manual, Page 127Get this manual
CYLINDER HEADCYLINDERPISTON Clean the cylinde head assembly with solvent and blowout all oil passages with compressed airInstall the valve spring seatsInstall the new stem seals'97- 2001:
INNE SPRING OUTER
CN O-,T',Note that the intake valve stem seal is green and the exhaust valve stem seal is brown
SPRING RETAINER
lubricate the valve stems with engine oil and insert the valve into the valve gu ideTo avoid damage to the stem seal, turn the valva slowly when insertingInstall the valve springs ith the tightly wound coils facing the combustion chamberInstall the valve spring retainer