Someone had posted on here that this is a known problem with the R25 or R125. Can't remember which. They also listed a SKF replacement bearing part#. I will try to dig it up. It was on one of the trouble with shifting threads.
I did pick up two new SKF replacement bearings for the pressure plate. $43 a piece.
So should we do preventive maintanance and change it now?.. Im wondering if all these bikes that have the problem are just in one country (maybe a bad batch of bearings) or is it everywhere.. And why Yamaha hasnt issued a recall..
This case happened for R25 in Malaysia and Indonesia. Even R3 Thailand also got the same case.
As for now, if it was happened in the warranty period Yamaha will replace it for free.
But it would take a lot of hassle if the bearing was broken due to the bike wouldn't engage to any gear!
So most of us replaced with SKF bearing (code : 61901-2z).
Only a bottle of coolant need to be replaced with(since coolant hose will be disconnected during the maintenance).
And not a single drop of engine oil involved ;P