HELLO -AFTER SEARCHING FOR A WHILE WE HAVE FINALLY PURCHASED A SINGER 29K171 PROFESSIONAL SEWING MACHINE. WE OWN A MOTORCYCLE SHOP AND I DO ALOT OF PATCH SEWING AND THIS MACHINE WAS A MUST HAVE FROM DOING SOME RESEARCH. THE PROBLEM I AM HAVING, I CAN NOT SEEM TO FIND INFORMATION FOR THIS PARTICULAR MACHINE. I AM IN NEED OF PURCHASING BOBBINS, SMALLER NEEDLE, THREAD, ETC. CURIOUS IF ANYONE HAS A PARTS MANUAL/ SERVICE MANUAL FOR THIS PARTICULAR MACHINE. EVERYTHING I SEE ONLINE IS CONTRADICTING FOR SIZE AND WHAT I NEED. ANY AND ALL INFORMATION WOULD BE APPRECIATED TO GET ME UP AND GOING HERE. I AM WANTING TO PUT THE SMALLEST NEEDLE I CAN IN IT TO DO MY PATCHES, (MOST HARLEY GUYS DON'T WANT ME PUTTING HUGE HOLES IN THEIR LEATHERS) AND I DO NEED TO GET SOME BOBBINS FOR THIS MACHINE. LOOKS TO ME LIKE A SMALL BOBBIN BUT THEN OTHER THINGS I READ SAY ITS A LARGE? I JUST WOULD LOVE A BOOK THAT SAYS EXACTLY WHAT I NEED WEATHER I CAN DOWNLOAD IT OR BUY IT I DONT REALLY MIND. SEEMS ALOT OF YOU GUYS ON HERE KNOW ALOT ABOUT THESE MACHINES AND I WOULD LOVE TO KNOW MORE!! THANKS FOR YOUR TIME!!