Elna sewing machine, the timing is out. I've got an Elna series sewing machine, and the timing

Question

I've got an Elna series sewing machine, and the timing has gone out, the needle is hitting the bottom bobbin case too soon so is'nt sewing, I think that the timing has gone out on the motor, I've taken the covers of the machine and cleaned it up myself but don't know how to do this myself and am trying to avoid expensive repair bills! Thanks, Katie Dadds

I'm sure the timing is off on my Elna- the needle is hitting the hook - how do I set the timing?Hope someone can help! Thank YouBev