Originally Posted by
myperks
Do I clear customs in FUK to get onto the NRT. Is there enough time with checked bags?
Yes, and yes. You'll need to change terminals at FUK, but 2 hours is plenty of time to pick up your luggage, ride the bus to the domestic terminals, and check in.
And if I clear customs in FUK and recheck my tagged bags, do I need to reclaim in NRT?
No; NH will tag your baggage on to SFO.