Service manual Kenmore sewing machine 385 12912890 appears timing is off.

SOURCE: kenmore Sewing Machine

www.mastersewusa.com has free kenmore manuals

SOURCE: Kenmore sewing machine manual for model # 148 12080. (older)

i have a older kenmore sewing machine model #148.19370

SOURCE: kenmore sewing machine model 385 16764

There's a website called managemyhome.com which is sponsored by Sears. It's free to join. Go to the Home Manager column and choose Owner's Manuals from the drop down menu.

You can type in the brand name (Kenmore) and model number of your machine. Not all of them are in there but, I did find the one for the 1950280 question. It's a pdf file.

For the 38516764 question, please double check your model number. I received either no response or a Kenmore Elite dishwasher manual in response to my query.

SOURCE: service manual elna 722010 sewing machine

www.whitesewingcenter.com has the manual for an Elna 722010.

SOURCE: how to "tune-up" mechanical Kenmore sewing machine

Sure! Jenny at http://blog.sew-classic.com/categories/Sewing%20Machine%20Repair.aspx has several very good, in-depth articles about servicing your own machine, but here are the basic steps:

1. Take out the bobbin case and bobbin holder.
2. Take the needle plate off.
3. Brush out all the old lint in the bobbin area and under the needle plate. Remove any loose bit of thread.
4. Open the head of the machine (should swing open). Clean any lint or thread that's caught in there.
5. Locate your machine's oil ports and put one drop of sewing machine oil (only use sewing machine oil) in each of them. One drop is sufficient. General rule of thumb: Put one drop of oil wherever metal moves against metal.
6. Using unwaxed dental floss, floss the tension disks.
7. Put everything back together.

If you need a manual, I found one at http://pages.sewing-machine-manuals.com/173/InventoryPage/1834489/1.html.

Hope this is useful!

Robbie