carburator

  1. B

    New Carbs Needed

    I bought an XS400 engine and I’m currently working on getting it running, it needs a new wiring harness, alternator wires, cdi, carbs, a head gasket and some others. If you guys have any recommendations on what parts I should use it would be greatly appreciated, I’m looking to spend as little...
  2. G

    Carb rebuild on a 1982 Maxim 400J. Float height setting ambiguity

    I’ve torn apart and cleaned my BS34 carbs. I have found a multitude of problems so far: 1. The right side carb float needle was stuck. I changed both float needles (purchased from MikeXS) in a partial kit. 2. The right main jet tube was horribly dirty, greenish, crud all over it, and the pin...
  3. A

    1982 Yamaha XS400 Seca Idle Issue

    I'm having an issue with my idle staying consistent. I've cleaned the carbs and adjusted the pilot screw 2.5 turns as the manual suggests just to ensure everything is at spec. However the problem still persists.. I've attached two videos of the issue. Delayed Throttle Idle Increasing without...
  4. The Wang

    Over speeding Following Carb cleaning and float adjust

    The other day I cleaned out my carbs/adjusted the floats, I didn't mess with any of the settings on it however after putting them back on and running it, there's no longer a flooding issue but it's over speeding. I lowered the idle and it does nothing, I took the gas tank off to see if the cable...
  5. RockyRo217

    1978 Yamaha 400XS one cylinder won’t run!

    Hi guys/gals. I have been using all the treads religiously and have found great help from everyone’s conversations but I’m defeated with my ‘78. I bought the bike as a project for myself throughout the offseason and was able to get the bike running but only with the right cylinder. I have had...
  6. W

    diaphragm spring tension

    Hi all, I understand this is likely a newbie question but I can't seem to track down a definitive answer. I'm in the middle of a carburetor rebuild, and after putting the diaphragm assembly back together I noticed that it moves easily, but doesn't move back to the "idle" position on its own...
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