Board Thread:Theories and Speculation/@comment-2165692-20170426120148/@comment-734582-20170430122357

Actionmanrandell wrote: naruto's regular chakra was more than enough to summon gamabunta, jiraiya was simply trying to force naruto to use kurama's chakra. Actually, Naruto had problems gathering so much chakra. His chakra control simply wasn't good enough to cast such powerful jutsu despite having so much chakra.