If it worked before you cleaned it I don't think it's the timing. Maybe re-walk your steps when cleaning & see if there's something you might have put back together wrong/backwards/missed.
I found this manual online but it says "on hold" so not sure if it's available for sale. You could contact them and ask. There's a link under the picture of the sewing machine that says "ask a question". It might be worth a try.
https://www.tias.com/173/PictPage/3923202480.html