Proper invisible zipper foot attachment for Featherweight ii 117?

Don't know if this will help:

Singer Featherweight 221 Needle Clamp Thread Guide

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The Featherweight II 117 uses the Class 15 bobbin. A 4-pack of the Dritz equivalent of the bobbin is available from Amazon here: http://www.amazon.com/Dritz-Plastic-Class-15-Bobbins/dp/B000Y3D1NG . Singer has a 10-pack of the bobbins here: http://www.singerco.com/accessories/detail/2075/class-15-bobbins-10-pack . You can buy a manual from Singer, as well. (See their Instruction Manual page from the Customer Support Link then enter 117 in the Search box.)

I hope this helps.

Cindy Wells

Check the singer website for a operation manual
Go to the singer website
Go to the home page
At the bottom of the page look for instruction manual--click on it
It will take you to another page
In the box put the model number (example 117) & click search
They usually have a free download

check with sewingpartsonline.com

Take it back to them, they received money from you and should back up their work. If not, file a complaint with the BBB.

Search for "sewing machine timing"

lots of web sites and videos

Try on this site.
http://www.sewingonline.co.uk/instructions/
Some manuals are free to view online and reasonably priced to download.

Here you go.... Just click on the one that is free....
http://www.singerco.com/accessories/manuals.html

Basic Timing info is HERE

Class 15 bobbins should work fine. This is the most common bobbin type, any sewing or fabric store should have them.
Good luck!