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  1. N

    Wanted - New Valves for SOHC engine

    Hey all, I'm looking for a NEW set of valves for my 1978 Yamaha XS400. One of my exhaust valves is bent and they are all worn beyond getting the stem resurfaced. The OE part numbers are: 1L9-12111-02 INTAKE VALVE 1L9-12121-02 EXHAUST VALVE They are no longer avaliable from Yamaha in Japan...
  2. Fortune

    New member! New bike! New... mechanic?

    New xs400 owner here, my first bike! I'm a bit of a hobbyist mechanic but I've always wanted an old Yamaha, I just love older Japanese bikes. Anyways, the owner was a super nice guy who let go of this bike for $300 and a chicken sandwich (I got the guy fries too for giving me such a killer deal)...
  3. B

    Xs400 not regulating

    I know i've read threw most of the posts about this, but I just don't understand what is going on. Help me out? The skinny: From engine: Black - field coil ground? Green - field coil 3 whites- ac current I have the r292 VR, the magnet works when energized directly from battery, green receiving...
  4. Z

    Hello! Houston

    Hi. everyone I introduce myself, they call me Zeeshan, I am from Houston
  5. A

    Purchasing a problem

    Hey yall, I am in the process of purchasing a XS400. Unfortunately, the PO has informed me that the bike will not go above 30-40 mph. I was hoping someone would be able to tell me what might be wrong so I know what I'm getting myself into. I know that there's no way someone can give me a 100%...
  6. pbr206

    Not another "New Bike" thread...

    First off, I have a 1980 XS400G (That's what the PO told the other PO who relayed that to me when I bought the bike at least) but the VIN is 3F8, which the forum says is a XS400G Special 2 3F8 12/79 1980. The PO posted on here for a bit (Hey Kyle), and it seemed as though there were some...
  7. Superdog25

    First bike. I could use a little help here

    So I just purchased my first bike ever. It's a 1981 xs400 special. The electric start button is broken so it's kick start only. Is there a procedure to start it? Iv been trying for hours to start it. When I bought it, the guy just kicked it once and it started. I don't get it. Sorry for the noob...
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