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  1. M

    The sub $500 daily rider build

    Picked up this 81 by trading a clapped out Bultaco Alpina that was locked up, only paid $50 for the the Alpina, I have a total of $337 in it, that includes new tires and everything. Lots of trading, wheeling and dealing. Put pods on it, PO had the wide open pipes on it, it'll hit 78 mph, with...
  2. M

    Coil relocation for new tank?

    Picked up an older tank for my 81 Xs. It hits the coils. What have people done to Move the coils?
  3. M

    Wanted - Air mix screw 81 xs400

    Previous owner stripped the top of one of the screws. Have to drill it out. Does anyone have a spare?
  4. M

    Another XS falling on it's face at 6000 rpm

    81 xs400, loud pipes, went up to 147.5 on the mains, bike pulls great, idles perfectly, no flat spots all the way to 6000 while under load. I can coax it to 6500 on a straight or down hill. There are no plastic air boxes around the stock filters, so I'm guessing the way too much air? Did a plug...
  5. M

    Another XS falling on it's face at 6000 rpm

    81 xs400, loud pipes, went up to 147.5 on the mains, bike pulls great, idles perfectly, no flat spots all the way to 6000 while under load. I can coax it to 6500 on a straight or down hill. There are no plastic air boxes around the stock filters, so I'm guessing the way too much air? Did a plug...
  6. M

    Another XS falling on it's face at 6000 rpm

    81 xs400, loud pipes, went up to 147.5 on the mains, bike pulls great, idles perfectly, no flat spots all the way to 6000 while under load. I can coax it to 6500 on a straight or down hill. There are no plastic air boxes around the stock filters, so I'm guessing the way too much air? Did a plug...
  7. M

    81 XS 400 stumbles at 5k rpm

    Starts and idles great, when first starting out bike will hit 65 easily, thereafter only 55. Im guessing float level? Did plug chop and plugs are white. Pipes are aftermarket and quite open. Maybe go up a size on the main? Thoughts?
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