Henua in Ga6-13 (where 6 * 13 = 3 * 26) has ordinal number 168 (counted from Gb8-16, 168 permutated), which is a fundamental 'constant' in rongorongo. A new season is being born, Ga6-12 is a tamaiti.

Manu kapa in Ga6-14 is a 'bird' flapping (kapa) his 'forward wing'. His position is 13 * 13 = 169, a sad square (kapa is also a song for the dead). In the parallel K text ua indicates that the new season is rainy:

22
	Kb3-1	Kb3-2	Kb3-3	Kb3-4	Kb3-5	Kb3-6
23			Ordinal number 145 (= 5 * 29) is counted from Ka1-1. Possibly the double henua alludes to the thunder twins. And with thunder (poko) there should be rain, ua.
	Kb3-7	Kb3-8 (145)

If we locate Te Manavai at Ga5-7, then Te Poko Uri should come one month later. Adding 32 to 118 (= 4 * 29.5 as counted from Gb8-30 to Ga5-7) we reach 150 (counted from Gb8-30) which is located at Ga6-9. With 29 instead of 32 we reach Ga6-6:

Conclusion: We have tentatively identified Te Manavai and Te Poko Uri as the 4th respectively 5th months. Te Manavai could signify the empty dry river beads waiting for rain. In Te Poko Uri thunder and rain are delivered. We seem to have confirmed that the order between the kuhane stations are reversed on side a. Presumably the thunder twins are located back-to-back in Te Poko Uri.