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  1. M

    Odd compression issue... any ideas?

    I have a 1983 XS400 that seems to be having an odd compression issue. I just tested the compression and the right side has 125psi, while the left side barely registers (at about 25psi). The thing is, it is running seemingly fine. I am getting combustion from both sides and it will run with...
  2. M

    NEW XS400 owner, have a few general ?'s

    Hi Everyone, I just purchased a 1983 XS400 Maxim (w/ 10,235 Miles on the Odo) and wondering if anyone has any general advice about this bike, engine reliability, maintenance needs, things to watch for, general impressions, or any other comments that might be helpful to a new owner. This is...
  3. M

    VIN incorrect??

    Hi All, New owner of what I believe to be a 1983 Yamaha XS400 Maxim. I have a VIN that reads as follows; JYA12R007CA083608 which does not appear to be valid according to Geico and the VIN search sites. I can't figure this out, it is copied directly off of the bike and I know the bike has...
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