Does your foot have a little black button on the back of it? If it does, push that just before you reach the seam. It adjust your foot to help get over the seam. Failing that did you get a hump jumper with your machine? It will help you get over the bulky seam. I have two Janomes and they both have the black button they both came with a hump jumper. Hump jumpers can be purchased.