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Hi guys I just got an 81 xs400 for free from my grandfather. It has wheels and a front end from a later one though. We're not sure why it is that way but hey whatever it works. It needs way more work but I got it running pretty good so far. And yes it is still filthy.
81 SH if your vin starts with 4R4 the wheels and forks are 82-84 dohc xs400 maxim. I would get a set of stock air boxes and intake pipe "H-pipe" as the bike will run/tune much better than what you have now. Welcome to the forum.
81 SH if your vin starts with 4R4 the wheels and forks are 82-84 dohc xs400 maxim. I would get a set of stock air boxes and intake pipe "H-pipe" as the bike will run/tune much better than what you have now. Welcome to the forum.
Unfortunately I don't have the original intake but I have it running pretty well now. It has some oval K&N filter that goes on both carbs. And the exhaust is gonna have to also be replaced cause it has a hole in the right side muffler.
I've been pretty successful tuning it so far but if I have issues with running once I fix up the exhaust and such I'll probably find a set of the original.