We may have found other answers which could help you.
Click here for Sewing Machine Stitch Problem
Elna 2800 makes noises when flywheel engaged?
elna diva 900 sewing machine?
unlock 'frozen' Elna Lotus zz sewing machine?
How do I switch my Elna SP 2004 from reverse to straight stitching?
How do I adjust timing on my Elna Funstyler?
elna quilters dream 6600?