It's been a while since I've tried to make a tight connection in Narita. This one is tricky since it is two separate tickets. I'd be coming in on UA into Narita. I will have to collect my baggage and go through customs/immigration and then re-enter security and then check in and check bag, to catch a flight to Taipei on China Airlines. Since there is no interline agreement, my bags won't be checked through. I'm planning to fly J so that should cut down on check in times.

Do I have enough time to do this with 2 hours and 15 minutes?