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Recent Activity

Activity stream for all registered members at Yamaha XS400 Forum.

  1. CaptChrome replied to the thread Engine Temps.

    Exterior spark plug and head temperature is not something I measure, so I have no idea of what is normal or not. I don't have a running...

    May 18, 2022 at 5:59 AM
  2. Myles Vorisek posted a new thread.

    Misaligned front forks

    [ATTACH] I have a 1981 xs that I got for free a few months ago (abandoned on a friends property) and I’ve been making steady progress...


    Forum: The Garage

    May 17, 2022 at 2:49 PM
  3. Myles Vorisek has a new avatar.

    May 17, 2022 at 2:48 PM
  4. Denverdean1 replied to the thread Battery dies after a while.

    The issue is the rick's reg/rec. For some reason the voltage point is set too low and won't charge past 12.5v and my battery doesn't...

    May 17, 2022 at 8:24 AM
  5. Buddha replied to the thread Battery dies after a while.

    I concur with CaptChrome May I suggest getting an automotive volt meter gauge, wiring it up to the battery and temp mounting it so that...

    May 17, 2022 at 12:22 AM
  6. Brads400 posted a new thread.

    1981 xs400SH reading 90 psi

    I recently bought this bike, and I was having trouble getting it to start with pods and stock carbs, but once I got the bike to start it...

    Forum: The Garage

    May 16, 2022 at 9:25 PM
  7. SlingMoustachio replied to the thread No power when the key is turned.

    Well, I'd talked to an electrician friend of mine while waiting to hear back on the forum and he believed there was excessive sulfate...

    May 16, 2022 at 8:53 PM
  8. SupsChad replied to the thread Engine Temps.

    Would you say 310f is a high engine temp? The only info I got was someone with the same bike getting 255-275f. And I cant really find...

    May 16, 2022 at 8:38 PM
  9. CaptChrome replied to the thread Battery dies after a while.

    Once you put in your own wiring harness and components, you are kind of on your own. It is sort of difficult to help without knowing...

    May 16, 2022 at 8:26 PM
  10. CaptChrome replied to the thread 1977 XS400 valve inspection cap part#.

    You can look up the parts yourself on a number of sites (Partzilla.com, Yamahapart.com, etc), just drill into the year and model for the...

    May 16, 2022 at 8:22 PM
  11. CaptChrome replied to the thread Glad to be here and the XS that was meant to be....

    That bike sounds pretty sweet going down the road! Get those little issues sorted out, and it will be a really nice ride! Great work you...

    May 16, 2022 at 8:17 PM
  12. CaptChrome replied to the thread No power when the key is turned.

    Sounds like you have a major short some place. Do you have the factory wiring harness? What reg/rec did you put in (there are two basic...

    May 16, 2022 at 8:14 PM
  13. CaptChrome replied to the thread Engine Temps.

    The plugs to me look pretty good as a starting point. IMG_3404 has that nice brownish color that you want to shoot for. The other plug...

    May 16, 2022 at 8:07 PM
  14. CaptChrome replied to the thread Are Jets Universal?.

    I don't think Mikuni jets are universal across the range of carburetors that they have produced. Your best bet is to go to a supplier...

    May 16, 2022 at 7:54 PM
  15. CaptChrome replied to the thread 82 Maxim.

    Welcome! I don't know about the stock carbs on the DOHC models, but if the answer is anywhere, it will be found somewhere in a post on...

    May 16, 2022 at 7:47 PM
  16. CaptChrome attached a file to the thread 81 XS400H – putting the Trusty back into Rusty.

    I am back at it again. It is kind of hard to make progress when you are in North Africa for three weeks, and I have a couple of travel...

    Clutch install 1.JPG Clutch install 3.JPG Oil Fill.JPG May 16, 2022 at 7:39 PM
  17. Jeri Sparshu posted a new thread.

    82 Maxim

    Hello! I just bought an 82 Maxim. Appears that it doesn’t have carbs. Curious what the stock carbs are. I have 3 xs850s and multiple...

    Forum: The Garage

    May 16, 2022 at 10:05 AM
  18. Brady232 posted a new thread.

    Are Jets Universal?

    I think I need to increase the size of my pilot jet and maybe my main jet in my Mikuni carb on my bike. The main right now is 135 and...

    Forum: The Garage

    May 15, 2022 at 4:28 PM
  19. SupsChad replied to the thread Engine Temps.

    I just rode this bike for the first actual time on the road for about an hour. Temp never got above 320f and stayed more around 305f...

    May 12, 2022