Board Thread:Naruto Discussions/@comment-1043414-20140724205217/@comment-25077020-20140726065912

WindStar7125 wrote: Yeah what he said, Kurama's power and strength are probably the same, it just it has less chakra. Maybe that's why Naruto and Yang Kurama in Tailed Beast Mode only last 5 and 8 minutes respectively, same strength, less chakra. I mean, we don't know how long other jinchuurikis can stay in Tailed Beast Mode, but it's surely longer than 5-8 minutes. For example, Gaara and Shukaku vs Naruto and Gamabunta that must've lasted more then 5 minutes. Could be wrong tho.

the reason Naruto's tailed beast mode doesn't last as long is b/c it hasn't been long since naruto was able to use it. In other words not enough experience using it.