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#1816154 - 12/31/11 08:43 PM Yamaha P90 Sticking Keys
kdi Offline
Full Member

Registered: 11/27/09
Posts: 88
Loc: Central Fl
I have a six year old Yamaha P90 stage piano that I bought new. After about a year the B just below middle C would very occasionally stick or more accurately require more effort to push down than the other keys. Now other keys are exhibiting the same behavior on a more regular basis. It also seems to occur generally on keys below middle C.

I gave this piano to my grand daughter several years ago. When we visited over Xmas and I sat down to play it was clear that something needs done. Can anyone offer a guess as to what the problem may be before I track down an authorized repair facility.

Thanks. kdi

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#1816301 - 01/01/12 04:56 AM Re: Yamaha P90 Sticking Keys [Re: kdi]
LesCharles73 Offline
500 Post Club Member

Registered: 03/24/07
Posts: 743
Loc: Denton Texas
I had the same issue with a YDP-113 that probably had the same action. I took the whole thing apart and didn't find anything visibly wrong, so I don't think I'd go the "exploratory surgery" route. It's possible that it needs a re-lube, but it could be other things as well. Seems like I heard that hairline cracks in the keys themselves can cause this problem. I never worked out my YDP's issues because I sold it "as-is" a few months later.

Since the piano is no longer under warranty, there wouldn't be any harm in asking a tech what the problem might be. Maybe something you could fix, maybe not, but it would be good to know beforehand.

Come to think of it, a friend just bought a P-80 with the intention of retrofitting it in to an old birdcage upright cabinet, and it has the same issue. It's a very slight problem and only a player who knows how it's supposed to feel will notice it, but I would say that given this and my previous experiences, it's not that uncommon of a problem.
Les C Deal

#1816344 - 01/01/12 09:08 AM Re: Yamaha P90 Sticking Keys [Re: kdi]
mitzysman Offline
Full Member

Registered: 10/27/10
Posts: 290
i had the same problem with my p250 - if you call Yamaha it should be under warranty. They may replace the whole keybed (which WILL change the feel) or they will send you a replacement key. You will have to pay labor, but the parts should be free. It is deteriorating plastic on the white keys.

Edited by mitzysman (01/01/12 09:09 AM)
Yamaha P-250 | Galaxy II Pianos | Galaxy Vintage D | The GIANT

#1816673 - 01/01/12 08:15 PM Re: Yamaha P90 Sticking Keys [Re: kdi]
kdi Offline
Full Member

Registered: 11/27/09
Posts: 88
Loc: Central Fl
Thanks to all for the info.


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