How do you retime a Kenmore Model 385 Sewing Machine?

How do I resync a385.16221300 the needle hits the bottom plate ?

How do fill a bobber?

Kenmore 158.12511 stopped sewing?

How do I troubleshoot a Kenmore sewing machine 1972 zig zag?

Sewing machine needle won't move when I step on foot peddle but moves manua?

How to thread my kenmore 385.1695180 ?

What size motor does this model have 158.14300 ?

Kenmore 158.14001 Stitch length knob now turns, won't change length?

Kenmore sewing machine #15814300?

Why won't Sears Kenmore 158.14001 stitch length turn?

Where do i oil my Kenmore 6 stitch model # 158 13400 ?

n o reverse?