How do I get a manual for a singer serger 14j334

This sounds like a timing issue. You need a professional.

click this link for your manual 14u13
http://www.singerco.com/uploads/download/7f319841641c73d0a8ec2c0b5aa498ebdf617b1f.pdf

you can dowmload the manual off the link below
http://www.singerco.com/accessories/instruction-manuals

go here for help > http://www.singerco.com/contact-us

try this link below
http://www.singerco.com/accessories/instruction-manuals

go to this link below to download the manual
http://www.singerco.com/accessories/instruction-manuals

The Singer support site has manuals for download or purchase. Start here: http://www.singerco.com/accessories/manuals.html and enter the model number then click Search. Then click on the Free Download button for your machine. There are two different machines with the 14SH654 model number listed; one is an UltraLock and the other is a Finishing Touch sewing machine.

I hope this helps.

Cindy Wells

If you go to www.sewusa.com there is a free threading diagram for your machine. They also sell your manual for $10. Good luck

You may download a copy of the manual at http://www.singerco.com/uploads/download/1292_14u44b,244b.pdf

You may download a copy of the manual at http://www.singerco.com/uploads/download/25bf9e9bbad9a7d0d19b2aae746210fed48496e5.pdf