ElFishbone Report post Posted November 18, 2023 I have, what I believe to be a very early 1508 that is missing the needle bar thread guide. The one with the small hole at the base of the needle bar. I ordered a Juki one and it does not fit. I wonder if the first early 1508’s had a smaller needle bar? Could someone measure the diameter of their bar and let me know what it is. My machine does not have the double top tension adjusters either. Juki has not responded to a couple of emails asking questions about it. Thanks Quote Share this post Link to post Share on other sites
shoepatcher Report post Posted November 18, 2023 my early 1508 needle bar measures 6.25mm glenn Quote Share this post Link to post Share on other sites
ElFishbone Report post Posted November 18, 2023 Thanks Shoepatcher, Do you know if that is the same as the 1508N? Any tension problems that you need the second tensioner? What size thread do you use? Quote Share this post Link to post Share on other sites
shoepatcher Report post Posted November 19, 2023 (edited) -Do not know if is the same as the 1508N. Checked. It is the same Part # B1401-053-000. Check to see if that is your part number on what you ordered. If generic, return it and order genuine from Juki Dealer -Second tensioner just makes it easier to adjust the tension -I use up to #138. You can run #207 on top I believe. Use #138 in bottom. glenn Edited November 19, 2023 by shoepatcher grammar Quote Share this post Link to post Share on other sites
