Needed to find an inexpensive sewing machine for my granddaughter. I bought a New Home 535--older model but when I tried it out there, it sewed a great stitch. After cleaning and oiling it, I find that when setting a normal stitch length, it periodically makes little loops on the bottom (bobbin) side. Also, the needle is all the way over to the left side of the presser foot--no obvious needle position adjustment. Anyone know how to fix this?