Can someone give me an exact description of how to remove a white key from a Yamaha YPR-7 and how to replace the spring? I’ve never done it and I don’t want to break the key. I’ve looked for videos but none show these steps clearly. There seems to be a piece on the side of the key that stops it from going straight out.
The keyboard has taken over our dining room table and my husband is threatening divorce! 
Most of the requests I see are not answered so I’m not too hopeful here. One had a video that said it was good for any Yamaha keyboard-not mine! ( https://www.synthxl.com/yamaha-dx100/ )
Liza,
is really easy once you worked it out. In essence - you need to push each key back about 3mm then lift the rear of the key up a little and pull it out forward - the spring will stay in at an angle pointing upwards.
HOWEVER - you now find you cannot push any key back; that is because there is a rubber strip that is inserted and stopping the keys from going back and falling out. Carefully slide that rubber strip out sideward.
Inserting keys is the other way around; push it in in a slight angle upwards and click it in. Last step is to slide the rubber strip back in.
NOTE: White keys out first then black - black in first then white.
By the way … I have never seen a broken spring in these type of keyboards. You will find the fault being the white key broken … piece of plastic broken off on the underside if the key where the spring is pushed back from causing the key return.
Easy fixed too !!