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  1. J

    For Sale - 1971 - XS1B - Parts - Have Original Title

    I have a 1971 Yamaha XS1B. It has been chopped up (I know its a sin to even mention this. I didnt know the rarity of this bike before cutting... lesson learned). So the frame is no good. I have sold some parts off of the original bike like the seat, mufflers, handlbars, fenders. Stuff I...
  2. J

    Carb diaphragm hole

    Hello all, My 71 was running a bit crappy on the left side. and after some advice from a fellow member, i checked the carb diaphragms. i noticed on the left side that the PO must have done some sort of garage repair on one. it looked as if he painted over the hole in hopes of sealing it...
  3. J

    For Sale - 1971 XS1B parts

    1971 xs1b parts for sale. See attached photos. If interested, let me know.
  4. J

    not running good at low rpm

    So it has been been really nice in ct the past few days. So Friday i decided to take out the bike and make sure she is ready for a long season. Well i rebuilt the carbs over the winter. But once i took her out it had no power in the low end. Now i don't have a rpm gauge so im not sure the...
  5. J

    Lost left cylinder. need ideas

    i was riding my 71 last week and all of the sudden the motor dropped to almost 0 power. it was still running but not very well. i was able to dog it back to my house and i started looking right away. I quickly realized that my left hand cylinder was not running. The exhaust coming out was...
  6. J

    For Sale - 71 xs-1b pars

    Handle bars, headlight buckets, rear shocks, gas tank, side covers, front fender strut bar, rear fender/tail light. Make offer for all or some of these parts. I have pics upon request.
  7. J

    For Sale - Mufflers, speedo, tach

    for sale mufflers, speedo and tach
  8. J

    Jet size with exhaust and air filter

    I have a 71 650 and am thinking about pulling the stock mufflers once i rebuild the bike but i know i would have to increase my jets in the carb. Just wondering what size you guys think would be appropriate for stock exhaust with no mufflers and after market air filters?
  9. J

    My new/first 1971 XS

    I am picking up my first xs650 today at 5 oclock. It is a 1971, original owner, 31,000 miles. starts on first or 2nd kick. needs a bit of work but nothing too crazy. I know it needs tires and a head light. but thats all easy stuff. I will show pictures as soon as i get her home. and the...
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