2005-2006 Honda ATV TRX500FE/FM/TM FourTrax Foreman Factory Service Manual, Page 160Get this manual
CYLINDERPISTON CYLINDER INSTALLATION Clean the mating surfaces of the cylinder and crankcase thoroughly, being careful not to damage them, and being careful not to allow gasket material into the crankcaseBlow through the oil passage in the cylinder with compressed airApply liquid sealant to the crankcase mating areas as shown
Install the two dowel pins and new gasket