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Good afternoon to all of you! I am writing this post since I have recently run into a problem with 1979 xs400. I have noticed an oil leak under the cover of the points on the left side of the bike. Also, I have an issue with keeping the bike running. She only runs from cold...once she warms...

Hey guys, I have been reading everywhere that when replacing the points ignition / contact breakers, you must pay attention to how you place the wire and washers... Unfortunately for me, I had taken apart the contact breakers before taking a look as to where the wire must sit. I have looked...

So I started off my build with a 1979 xs 400f the bike ran when I got it. It needed some heavy attention to the poor attempt at making it a bobber...the previous owners had cut off the back end of th seat and welded two small rods together and bent the rod and attached a bicycle seat with the...

Hello all, i have also put an add wanting a fully running bike but if you have an engine, that is in running order I am in need of replacing one in my second bike. I only have the bottom end of the engine and it appears that everything has been taken from it to build the current bike i ride...

Hello all! I am looking for a running 1979 yamaha xs 400 preferably in canada! Even better Ontario! Hoping for mag wheels and disc brakes. I don`t mind having to do some work to the bike but would rather not get into engine. If I dont find a running bike, I am also open to just an engine...

The bike has been running well, I have been working on it over the last few weeks. I bought a 1979 yamaha xs 400. I had to remove a cat eye taillight with integrated signals to return to basic turn signals and a 1930s ford stop light. Everything had been working fine until i plugged in the new...

Hello to all of you, I am looking to rewire....more like repair the birds nest of wires on my new xs 400.... Problem is, I want to make sure I am basing the wiring from the proper wiring diagram. It has a 9 number vin 2L0-****** the previous owner did some work on the bike and had no clue on...