yeah and make sure the gasket sealer or gasket maker it could be called both , that its suitable for fuel . they usualy come in small tubes or those silicon tubes and they very expensive like 30 bux for a tube loctite and permatex make them , apply a small portion on your finger and smear a thin layer over on both sides of gasket , then bolt it up , try not to get any on the piston if you do just wipe it off .