5) Assemble the cylinder with new gaskets, do not use any type of gasket sealer. Do not put any more oil on the piston or cylinder, the WD-40 left in the bore is enough lubricant. Compress the rings with one hand as you slide the cylinder down onto the piston, look through the intake window to check the alignment of the ring end gaps over the pins, adjust the rings now with a small screwdriver as necessary. If the ring end gaps are not centered over the pins you may break the rings if you force the cylinder down, take your time. Torque the base nuts to the factory specs, install the head, torque the nuts to the factory specs.