Board Thread:Episode Discussions/@comment-25319479-20170920093317/@comment-25643824-20170923163518

Ravenlot 27 wrote: Well, I don't recall anyting particular that interferred in Naruto's chakra control except for Oro's seal.

Here is something I found online (so it's actually true):

The bijuu sealed with Naruto was held in place by linking Naruto's internal chi energy with that of the bijuu. As Naruto grew older he was able to utilize that link to his benefit, tapping the power of the Nine-Tailed Demon Fox. Being a descendant of the Uzumaki clan, Naruto inherited incredible stamina and vitality, which is further augmented by the Nine-Tails. According to Kakashi, Naruto's normal chakra level is at least four times of his own.

Naruto had always had poor chakra control due to the interaction of the bijuu chakra with his own. However, when Naruto's life was in danger the bijuu released chakra to Naruto to augment his considerable natural chakra. This would increase his strength, resistance to injury and give him incredible stores of chakra allowing him to create jutsu rarely seen due to their prodigious energy requirements. He later learns to harness this power at will.

Early in his career, Naruto effectively resists Orichimaru's giant snake jutsu using the chakra of the Nine-Tail Fox. Orichimaru, using the Five Elements Seal, blocked access to the chakra of the Nine Tales by disturbing the balance of the original seal. The odd number seal that Orichimaru used disturbed the even number seal used to orginally bind the jinchūriki.

Jiraiya, one of the legendary Sannin would later remove that seal, (considered to be a nearly impossible feat) releasing access to the chakra and teaching Naruto how to both harness the power and to eventually seal the power away behind a barrier preventing its escape and allowing Naruto to effectively tap the bijuu Kurame, without fear of releasing it.