I have a Singer 6233 stitches do not form properly. The problem is either with the dial on the front of the machine not changing to the proper cam to make the stitch or the cams themselves that are worn or slipping. Straight stitch will work but the decorative stitches don't. Is this something I can fix or is it doomed? I have another machine so I would not want to spend money to have this one repaired but it would be nice as a backup.

Jeanne, June 2006

Hello Jeanne,
Unless you have fixed the machine already, if the machine sews a perfect straight stitch but won't zig zag it may well be a slightly bent or blunt needle, it is very unlikely the cams are worn or misaligned, the very worst it can be is the machine slightly out of time, try the simple thing like the needle first, let me know if it does not work.
Ken

drivewithken@blueyonder.co.uk, July 2007