measuring bobbin hook relative to needle-timing Q?

it only means that when hook point is at correct place ,that is hook point must be flush with side of needle on forward motion,the point should be approx 1.2mm above needle eye.hope it explain little betterjust remember this a approx and can vary between make and model so play around little by little until thread get picked up on zig zag stitch.this setting normal with needle in center position and needle height correct

johan
December 2012