Forward And Reverse Stitch Don't Match

[NewYorkerInSydney]

Hello good people,

I recently purchased a Juki LU 1508 new. My first machine and am slowly learning to use it. I have a problem that I hope can be solved.

My reverse stitch does not match my forward stitch. So if I start sewing and then need to back tack or reverse stitch, I press the little lever and start to reverse. The problem is that the reverse stitch is way longer than the forward and doesn't match and doesn't go into the same hole and just looks plain terrible on the piece of leather. Anything I can do about this? I'd really appreciate your help.

Thanks in advance,

Nyis

[Uwe]

The service manual (http://semsi.com.mx/Manuales/JUKI/LU-1500N%20%20SEM02_.pdf) talks about how to adjust forward/reverse stitch length on pages 26/27.