jet size

  1. BambinoFan

    Question on Main Jet sizing

    Hey friends, Looking to rebuild my carbs to deal with a running idle issue - Thinking the diaphragms are shot. While I'm in there figured I might as well re-jet the whole thing. Ordered a rebuild kit from Taiwan, now I'm just confused about the main jet sizing. Baby is a 84 xs400j Maxim. The...
  2. Ben_Wagner

    Quarantine Project: '81 XS400 Special

    I recently have started working on my uncle's/dad's XS400, my first motorcycle project. I have worked with QT50's and other small mopeds in the past, but nothing this size. The bike hasn't been ridden seriously since the '90s as far as I know, although it has ran a few times since then. Today I...
  3. X

    Bike nube

    Hey there, I think I've concluded that I have a 1982 xs400SJ and I'm looking to purchase new Jets. Looking at a few posts on here it appears that the main jets are different each side. I'm looking here: http://www.boats.net/parts/search/Yamaha/Motorcycle/1982/XS400SJ/CARBURETOR/parts.html...
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